Well I am finishing up my 69' convertible and here is what I think. I am the 3rd owner with a NOM 350 / TH-350 combo and power top, deluxe interior, power disc brakes, trunk release, and power steering. I did a ground up resto, new everything, and have right at $25K and 2years in mine. It took longer and cost more than I planned for but I think it is worth it. I believe prices are inching up on our Birds, especially drop-tops so I think if you bought it in that $15-$20K range you did fine.