i would want to make sure that it is a "real" Ftoy chassis frist....from the pictures it looks a little suspect to me.
All of the Ftoy chassis have and ID number that has been stamped into the cage behind the A pillar, that is one of the things that helps the FToy hold value in my opinion, because not just any one can build the Chassis itself.
There are only a hand full of people that build these chassis for Hendrix, mounting the chassis to the truck frame is left to the end user.
i would make sure it is a true Ftoy frist...if its not a Ftoy it is just a buggy and the value is up the the parties involved at that point in some respects.
also this buggy is a LONG way from being complete...if this is the current way it sits.
All of the little stuff that is not finished is some of the more labor intensive things... (wiring, plumbing, mounting things, shocks, seat tabs, brake pedals, exaust, fuel system, ect...) all of these things will take a lot of time if done right.
hope this helps.