Original 340 Exhaust Systems Help

According to Don's he can't bend stainless because you need a special machine to bend stainless pipes that is very expensive. I looked at TTI and didn't see a stock system without the "H" or "X". But I didn't call yet. TTI lists a 2.5 & 3 system. That could really squeeze things underneath. Accurate looks like a good system too. So far the system on ebay is the best price but I didn't get an answer from the vendor yet about the system. Don's is in the middle price range. I can't bring myself to installing a plain carbon system. The rust would drive me nuts and I do plan on driving it. Not a trailer queen.