Yo've got the right website, plus I'll see if i can post some other stuff in your region to look at. Check out my wesite as well for some additional rally links and such: Fort Meade RallyCross.

Any extra set of tires/wheels are good so you still have something to drive home on in case of mishaps. I went with 15" wheels and the smallest diameter tire I could find to get a little lower gearing since rallycross isn't about top-end, and ground clearance isn't much of an issue for the VX.

A nice thing to have also is a SCUBA tank and regulator setup for air tools, so you can change your wheels quick and have the other benefits portable air provide. You can pick up used SCUBA regulators for $20 - $40 on eBay and all the fittings for air tool use (adapter, LP reg, 150 psi pop valve, chuck) are less than $40. If you're certified you can just rent a tank for about $3.

What kind of sailing Maugan?