Is installing a 912 on a Kitfox Lite in any way practical.

Can a Kitfox Lite, factory built as an ultra lite by SkyStar and run in with a 2SI engine then crated up and put in a box where the owner has left it stored, be moved to experimental amateur built at the heavier weight with a 912. Assume no documents came with the plane.

I am sure this is a huge can of worms at best and anyone reading this is rolling their eyes, but curiosity is getting the better of me at the moment.

BJ KF IV 1050 with 912