Love this mod. Been spending more and more time in scrapyard lately (especially with the custom fighters update!)
Randomish Idea.. (not sure if remotely possible)
For the replenishing of a scrap yard would you be able to have the faction spawn in random ships over time then have them get destroyed nearby to create new wreckage?
Maybe have it spawn 3 ships at a time - two smaller 'tugboats' plus a larger ship to 'scrap' ? To simulate them bringing old defunct ships to the scrap yard?
EDIT: Maybe look into the way certain events happen like when a ship warps in followed by enemies? (Also not sure how that works either) but have the first ship be the one to be scrapped, followed by ships of that faction to finish it off then leave?