I have to say, after reading all that it strikes me that Chris has got the ****** end of the stick and FettDad is somehow still part of our community. I have had dealing with FettDad a number of times, all of which were great and I had respect for D, but the underhandedness of the sales speaks volumes to me.
If FettDad wants to look after his customers he could always refund them and step away.
When you are caught with your pants down you just have to bite the bullet. I would be interested in knowing what constituted the work done to try and justify casting the part as your own and who else may be involved.