I recently bought a frame that I have been after for ages.
Now I have found a spec sheet from BMX Action Bike and realised the parts I need are really going to cost a fair amount. For example, Kashimax Aero saddle, Dia-Compe MX1000 rear caliper, ACS hubs and stem, Takagi cranks, KKT pedals.
I never buy these kind of parts, I cannot ever remember building a bike with a Kashi Aero saddle, and rarely use MX1000 calipers.
I have been out of this building 80's bikes for a long time, the 70's stuff is a lot cheaper and suprisingly a lot easier to source.