NRF
Go with what the lads are saying mate, your engine will love the 25 hr oil change, that will keep it gold and the wear and tear on your engine will be much less. Teepol Gold was always the best for cleaning but I think it has been bought by another company and they have changed the name of it and it's a bit how's your father now but if you can find any agents with the old stuff I would definetely grab it, failing that CT18 (truckwash as suggested) is the next best thing. Perspex cleaner made by Permatex comes in a square metal tin and it's worth its weight in gold. A company called Cyndan also makes a good perspex cleaner,you will find them easy enough on the net.
Good luck with the new rocket