You'd probably have more luck trying to get RWA or Canada Ammo to build them. I don't really see enfield parts being overly interesting to a shop known for building precision long range rifles and now the MV and MH.
I like where they're going now and wouldn't want to see them get bogged down building parts for antique milsurps. ATRS is a pretty small shop that's already struggling to keep up to orders.
With old rifles like those don't you just buy 4 of them and use the parts to keep the prettiest one running?