hey mate i used knox auto carpet and the budget stuff is sweet. I just grabbed some carpet underlay off cuts from a skip bin to pad it out. Plus I remade my door cards. Check out my rides thread in my signature, got a whole bit of how I made them.
Only problem with knox carpets is the holes arn't cut out. Makes it a bit tricky. I laid my old carpet over the top and chalked the outlines of the holes. Still tricky to get the seat holes and such right. Took me about 4 hours to get it in right. Just gotta take your time. If you have helpers even better, I done it on my lonesome.
Looking good so far bro, welcome and I'll keep an eye on this thread.