I agree about the 721/722's. I have two 722's, one a .257 Roberts the other a .308. The .308 was $300 with a nice lyman 3X. Will be interested in Jackies report on action trueness, etc.
A 700 trigger will fit, but the bolt release spring is different. It's a coil fit into a whole under the bolt release, rather than one hung on the trigger pin in the 700. I rebarreled a 721 to 25-06 with a shilen bank, put on a shilen trigger & an HS stock. Shoot very well. The 721/722's seem to go (around here) for just what you paid & are a better deal than 700's.
Regards,
Ron