Ok, what is my best bet for finding a benchrest style stock for one of those two?

I would prefer a fiberglass stock with an aluminum bedding block, 3" forend and a flat bottom. I'm not afraid of doing some fiberglass and foam work for the inlet.

Is there any chance I can install my spare Accu-trigger on what I'm assuming are pre-accu-trigger actions?

I'm going for a benchrest rifle, not competitive benchrest so I don't need a 2oz trigger.