[dallas_]

Welcome and best wishes in purchasing a replica.

Generally if a FFR has a 5.0 FI Ford it was likely a donor build which will trend on the lower end of the FFR cost spectrum.

There is no way to give you a value range without knowing the model series, seeing photos of the car and the list of specifications.

Build quality will also have a big impact on the value.

edit: you can fit, but you will likely need Kirkey seats or something similar to gain a few inches of leg room.