No worries
Perthmower,, and glad to see you got it stripped and everthing went OK for you...
Re re-painting the engine, before you mask it up, give everything a good cleanup first by degreasing and when hosed off and completely dry, rub all the painted surfaces down with a product called 'Prepsol' or otherwise known as 'Wax and grease remover...
You can get it from an automotive paint shop, or Super-Cheap, auto-One etc., and comes in 1 litre cans. Just be careful with it...it is extremely flammable...so no sparks or smoking around it!