you may get away with a little more with it being a track prepared car.
seats have to be able to be moved forwards and back and lock in position so that drivers of different heights can drive safely.
a steering lock must be fitted and working, take the key out sort of thing
you can however use discretion on things like that which in a race/rallly etc car would not be fitted.
just make sure the basics work and there is nothing daft and i'm sure you will be fine
lights you need, sidelights (must work with ignition on &
off, same for hazards) dip & main beam, both number plate lights must work, rear fog, brake lights, indicators.
also the "tell tale" lamps in the car must work - rear fog, main beam and indicators/hazards
speedo also must be illuminated and the glass not cracked. it will actually need a speedo, a tom tom or similar won't be any good
then make sure that brake pipes are in good condition and secured, hoses not split or chafing.
ball joints not too much play, the gaitors on all joints are now failable if split
check exhaust for security and leaks, a little blowing from a joint will be acceptable
wipers/washers, horn, belts for condition and secure attachment, no serious rust around anything significant, secure seats, screen not chipped more than 10mm diameter in zone A which is roughly the portion you look through, 40mm elsewhere
tyres for tread/condition and same size each axle, handbrake as well as service brake.
if all above is about right there's not that much else to do. emmisions may need a tweak as with twin carbs the CO limit is easily beaten
any decent place will help out with that though