Ian mount the belts to the bar behind the seat. A racer buddy broke a spindle in his RX3 and walloped a concrete barrier at 80 , at about a 30 degree angle glancing blow, his belts strecthed so far his helmet nearly hit the steering wheel.....the belts were mounted to the bar behind the seat..........they strech plenty. (I was on track directly behind him) I would also be remiss if I wasn't a safety nag. Make sure you buy a good suit and FULL face helmet and a HANS device, oh and get another diagonal in the rear hoop..............the goal here is to be standing outside the car crying about it being totalled vs people standing outside yer casket crying...............it sounds obvious but racing is dangerous as hell..............fun as hell too but still don't mess abut on the gear.

OK with the nag part over.....................the mild engine will be fine , get the suspension dialed then worry about the motor last. I've had the near stock GX in mine for waaaaay to long but it's still fun after 17 years.

Good luck mate and great pictures

Tom