It will work, but it will spread the spacing 1/16" over the scale length. May or may not be noticeable.
For a drop in replacement, you can use a Squier (cast saddles) or MIM Strat (stamped saddles) unit. The spacing may not be exactly 2 1/16", but it's closer than 2 1/8". If you want to upgrade, Callaham makes a block and saddles for the MIM base plate.
I put a guitar together from 112 & various other parts for my nephew a few years ago before I really knew much about what I was doing. It turned out great, and he played the hell out of it. Good luck.