From what you have said it seems he told you everything I have built many cars in my day and I still get remorse some times I think instead of thinking about how bad it is look at the good points and try to make it work from here you will have more satisfaction even if you decide to not finish it. I would make the chassis work for the body its much easier to work with metal than glass as for title its a home built just save all the receipts you can do it just try.
