Your local shop is loosing it. 16s are fine if you already have 16" rims, but 15s are available. Just may have to order them is all. No big deal. If they still give you a hard time, tell them you'll just order them from Tire Rack and get them mounted at the local gas station. that will likely get their butts working for you.

For a snorkel, ARB sells one as do other sources (ebay check for rexypow). I have a rexypow fiberglass ARB clone on my 96. Works fine. Others prefer the plastic ARB because it can bend when compressed. To each their own. I like the ability to patch up mine if I need to. Tough to do that with the plastic models.

For a roof rack there are plenty of options (Surco, Yakima/Thule, etc.) ranging from inexpensive to $$$$.

For bumpers check with Justice on this forum (I think I posted his info in the FAQ thread above)

Interested to see what you come up with on the dash & dual battery setup.

Pretty much most to all of what you're hoping for has already been done on here as well. Let me know if you need any help with the search function. I understand how it works but it seems for some it's not so easy. <img src="/forums/images/graemlins/wink.gif" alt="" />