I wish I had time to work on it with you. I have a list a mile long of repairs and mods to do on my vehicles. Not to mention my wifes list!
If you don't have the tools or place to do it why not try taking the parts to your local muffler shop and get a price? If you catch them at the right time it may be pretty cheap. Might avoid a lot of headaches if your not set up to do it!
Where are you at? I have done exhaust etc on my truck. Do you have a shop or access to one? I know a good website that sells stack kits, to make it go smooth, but cant apparently post it here. Let me know.... Dshiftff