(a) [Grocon] agrees to pay to [APN and Scots Church], to the extent that this is a positive figure:
(i) the amount payable by [APN and Scots Church] to [Grocon] under and in accordance with the [D&C] Contract, including for variations; less
(ii) the amount calculated as follows:
(A) the total of the Actual Trade Cost and the Preliminaries Amount ... at the times as stipulated for payment of progress claims in the [D&C] Contract ...; and
(B) any margin for profit payable by [APN and Scots Church] to [Grocon] will be calculated at the rate of 0%.
(b) The parties irrevocably agree that the amount payable by [Grocon] under clause 2(a) ('Set Off Amount') will be set off progressively against each progress claim under the [D&C] Contract and is not required to be paid by [Grocon] until [APN and Scots Church make] a payment on account of the relevant progress claim at least equal to the Set Off Amount. The Set Off Amount will be dealt with by [Scots Church] and APN in accordance with clause 2(e).
(c) [APN and Scots Church agree] to pay to [Grocon], to the extent that this is a positive figure:
(i) the amount calculated as follows:
(A) the total of the Actual Trade Cost and the Preliminaries Amount ... at the times as stipulated for payment of progress claims in the [D&C] Contract; and
(B) any margin for profit payable by [APN and Scots Church] to [Grocon] will be calculated at the rate of 0%; less
(ii) the amount payable by [APN and Scots Church] to [Grocon] under and in accordance with the [D&C] Contract, including for variations; and
(d) [APN and Scots Church] must pay any amount payable under clause 2(c) as and when progress claims are due under the [D&C] Contract.
(e) APN and [Scots Church] agree that to the extent there are any net positive differences as calculated under clause 2(a) ... that the net positive difference will be maintained by [APN and Scots Church] in its project budget cash flow and bank account as 'Contractor's Contingency' to be available for payment of any subsequent net negative difference (eg cost over run) claimed by [Grocon] at a later date until at least the Assessment Date (unless APN and [Scots Church] otherwise agree in writing).
...
(g) To the extent that either [Grocon's] rights against [APN] or [Scots Church] under the [D&C] Contract or APN and [Scots Church's] rights as Developer against [Grocon] under the [D&C] Contract are inconsistent with this clause 2 then, to the extent of that inconsistency, each of APN, [Scots Church] and [Grocon] irrevocably waives those rights as against each other, as applicable.
(h) In consideration of [Grocon], APN and [Scots Church] agreeing to fix the Preliminaries Amount in accordance with this Deed, [Scots Church] and APN agree that the [JVA] (including clauses 2.3, 16.2 and 23 of it) is varied as follows:
(i) if the Actual Trade Cost at the Assessment Date is below $96.3m (being the Fixed Contract Sum less the Preliminaries Amount) the first $3,000,000.00 of that saving up to $93.3m is to be shared between APN and [Scots Church] as follows:
APN 100%, [Scots Church] 0%
(and any savings on the Actual Trade Costs beyond $93.3m are thereafter enjoyed as per Clause 2.3 of the [JVA].)[15]
(ii) subject to (iii) below, if the Actual Trade Cost as at the Assessment Date is above $96.3m that cost overrun will be shared between APN and [Scots Church] as follows:
APN 50%, [Scots Church] 50%
(iii) if the Actual Trade Cost as at the Assessment Date is above $99.3m that cost overrun will be shared between APN and [Scots Church] as follows:
APN 0%, [Scots Church] 100%
...
(j) As long as [Grocon] has used all reasonable endeavours to recover any additional Actual Trade Costs from its subcontractors, consultants and insurance after the issue of the Final Certificate under the [D&C] Contract, if the Actual Trade Cost increases after the Assessment Date:
(i) [APN and Scots Church] shall be obliged to make a further payment of such additional costs to [Grocon] in accordance with this Deed upon 30 days' written notice; and
(ii) either APN or [Scots Church] (as the case may be) will make any adjustment payment as between themselves for contribution at that time in accordance with the [JVA] (as varied above).