The thing with roadkill tv is a lot of that stuff has got to be staged for tv drama. Sure it makes for good tv. That chip foose overhaulin show was a bit extreme too. I mean 5 days to restore a car. You got 50 people all asses and elbows. It seems like everything they do takes a crate motor 350 and TH350 trans. Oh and everything he does takes a 2 tone paint job. With that kind of speed quality has got to suffer. I told my wife dont ever write to this guy to "steal my car and redo it" i'd prob shoot him and then shoot her on general principles lol.
My local pep boyz has a speed shop, but everything in there is BBC and SBC other than some mopar valve covers, and the usual generic 4bbl carbs in multiple sizes and air cleaners that fit everything. I do have a summit racing warehouse and storefront in Arlington Texas about 3 hours away from me. I went there for an AMD floorpan for my sons 69 cuda save $100 on shipping. Now their store is bad ***. Got top fuel dragsters cabled up and hanging from the ceiling, and lots of cool stuff. Some more mopar stuff on display. I dont blame these places for having mostly chevy and ford stuff. I mean you gotta display what sells the most.
Most of the time though i am not in a hurry for a project part so i order online, or hit evilbay and have it delivered. So not too much different than you, except your across the pond.