Why wait? Get a bus now! There's several other college type people on here. I don't think that many of us can actually afford this hobby, but we find a way. Skoolie people are the resourceful type!
I've been working on my bus for a year now. I still think it was one of the most rewarding and fun things I've ever done. I'd definitely get a diesel bus. You can convert it to bio-diesel or veggie eventually. I plan to do that with my bus eventually. In the meantime, I try to keep the bus driving down to a minimum!
Diesel is almost $3.50 a gallon here. It's ridiculous. But sometimes, it's hard to resist taking it for a spin around town. It's fun to see the looks on people's faces as my bus goes by. 