If I was going to build something similar to this, I would want to have the oil control issues sorted. Replace the factory oil pump gears with something decent + oil restrictors + extended/baffled sump + breathers from sump to catch can. Unfortunately that build doesn't have any of these issues sorted.
It's your money but I'd say do it properly and spend the extra $$ or just cheap out and do a cheeky refresh, new bearings, MLS gasket, throw in some head and main studs, whatever machining is required/oversized pistons etc.
This isn't an exhaustive list but you get the idea.