I have a 69 Spit with a 1500 engine in it, and a EU manifold/header from quantumechanics.com. I was planning on using the stock pipe back to the rear muffler. I need to replace the rear muffler. I only drive it under 1k miles a year, and was not going to go stainless, etc. Any suggestions for an inexpensive muffler that will bolt in? So far the ones I've seen from typical british car parts sources are over a hundred dollars.