Rob... running a J Gas Lakester and possibly sounds like J Fuel Lakester... Did you get a log book with the car?
Lakesters are pretty simple for class rules so the only thing you need to worry are the safety rules.
It has not been at the salt for a while... does it have a 360 cage in it that complies with the over 175 rules? Inner liner or bars that keep all your parts inside the cage. Seems like it's last record was under 175... but I can't remember.
Is it Long Course qualified... does it have a chute
Belts are current
Does it have an inertia switch
Does your car have a chain guard... to ensure it can't come loose and whip through a fuel line.
If you are going to run fuel:
is there a hardline vent to the outside on the N20 valve
Is there a fresh air vent for the driver
Do the wheels, tires and lug nuts meet the over 200 rules
Does the fire system meet the over 200 rules
N20 is considered a fuel... needs to have a shutoff controlled by the driver...
What I'm saying is cars that complied and passed 5 years ago won't always pass now. Go through the car reading the rule book and checking the inspection form.
There should not be any surprise rules... some inspectors have their pet peeves but so far they are all in the rule book.... subject to interpretation
Take pictures and keep asking questions... everybody here has been a rookie...