i've been wanting to construct a simulator for years, when i get a garage that will be one of the first projects...

A stripped 300zx aluminum unibody only weighs a couple hundred lbs, maybe closer to a few but I know I can lift most of it by myself...anyways, I wanted to mount the projector on the roof (probably at the front of the center t-top bar, unless it's a slick top) with the screen somewhere at the end of the hood (if it had a hood). Gotta have bass shakers on the floor and the back of the seat with the smallest 5.1 system i can find to mount around you...two on the pillars, two behind you where about where the factory rears sit (just facing towards you), center channel where the radio would be, and a bandpass box in the trunk area for a powerful 12.

Simply bolt a large rubber castor wheel at each corner so it can be easily moved around. It would be killer to by able to have some sort of pneumatic setup that would raise and lower the back and front or if you're going through a banked turn tilt it side to side...no longer a relatively low budget then though.