Interior kits

[fastsvo]

Anyone have a good or bad experience with a mustang kit? Which vendors should I avoid? Which route should I take, in terms of having the shop use their own materials or just buying the kit and having them install it? I need to replace the headliner, carpet, front and rear seats...I would also like to replace the sound deadning material with something thicker/quieter. As always I am interested in keeping it original. What kind of prices should I be charged for this type of work? I figure I could be charged anywhere from $400-$1000 depending on quality of workmanship and how much of a sucker they think I am. Thanks.

-Eric