[member="Irys Arist'lar"]
The support/maintenance/spare contract for the Mark One was within ICE's capabilities and inclinations. Since ICE's main yards were located at the other end of the galaxy, naturally something would need to be worked out closer to the ACA heartland, but that was straightforward enough, relatively speaking, when only one model of relatively rare ship was involved. Four Peregrine units were provided at a discount, in anticipation of further orders.
The Attrition Mark Two was new enough, and in enough demand, that ICE would not be able to provide them right away, but (once the sucker gets secondary approval, it's yours.)