Junkyard is probably your best bet.
Look for Japanese sporty cars. (old RX7, Celica, etc)
I bought one of the cheapest "racing" seats on Amazon and was disappointed. (IIRC, it was $126)
The cloth doesn't feel like real automotive upholstery. I think they were going for a velor feel, but it's somewhere between velor and felt.
The butt area is also pretty narrow. I could stand to lose weight, but I think it would still be pushing in on my hip bones.
I haven't spent much time in it, but the seat that came with the initial d cab that I picked up seems more comfortable than expected for being hard plastic.
I'm debating between using it or the amazon racing seat. The Virtual On seat on my current cab sucks after an hour.
Oh, and I despise beige interiors.