Well, if you look on here, they can go from $100 up. If you want to get $BiG BuX$ for a stock system, I think ebay motors is a better place to post. People here are more-into helping each other keep their rides on the road than in profiting from other members. You should spend a couple of weeks looking at the technical threads under exhaust to see what I mean.
Have you posted in the 'new member' section yet? Coming-on like you have, with literally no history, don't be surprised if you don't receive much in the way of a positive feedback where anyone wants to do business. Yeah, I see "Not planning on selling them" but you may have the wrong idea about what this site is for if you are out to make $.
There are plenty of members here who have businesses selling parts, but they volunteer their time to answer technical questions free-of-charge and to give fair deals for parts to other members. Look at 'one2dmax' and 'CaptainKyle's posts to see what I mean.
No one is telling you to 'go-away,' we all welcome participation in the site by VMax enthusiasts, but you could have 'broken the ice' better, my opinion.