Welcome to the Green Machine mate!
Don't know about registering but as for insurance join the MVT. They have a deal with some insurance companies and its less than £100 a year in some cases (mileage, storage, security etc depending!!)
Mines a JapJeep,genuine tub and controls etc but on a 1987 Suzuki jeep chassis LHD.
Looks the part, sounds the part, not pampered, 5 speed box, disc brakes all round, unleaded, 4WD and good for 70 mph plus!! Does me and gets the rivet counters thinking (for a change in some cases!!)