This is just FYI in case you haven't heard it before.
Don't know about all states, but Texas forgoes state sales tax on a new vehicle if either you or your spouse have a mobility disability that requires a modification to a vehicle.
You must have the proper disability documentation.
Also GM and maybe Ford and Dodge, will contribute up to $1,000 on items on their eligibility list of acceptable equiptment.

Will share our experiences on a RV in 97, and our new '01 D-Max if there is an interest.