94 G20 conversion

Hi y'all knowledgeable folks! We are looking into purchasing a privately owned 1994 G20 High Top Mark III Conversion Van with approx 58k on the 5.7L V8 engine. We plan on traveling cross country and then using it as our windsurfing house-at the water. We plan on keeping her around for as long as we are still walking around. Now, while we are looking at this lifetime investment, is there anything that we should look out for, a flaw in this model? Electrical issues? I'd really appreciate any info about this van, good or bad! Thanks in advance!
-kat

we've had great luck with our '93 high top mark III. 118,000 and still ready for the long haul. no major mechanical probs but last couple years have started to battle some major rust problems even though its equipped with a corrosion inhibitor package. i'd give the whole body a good once over because from what i hear it is a typical problem.. good luck, we love our hotel on wheels!