I have found a old royal kit that is new in the box-royal p51d mustang with miss tangerine markings-any idea what it is worth-or if this was a good kit or not-64 1/2 wingspan-thanks

This is a builders kit , there are a lot of block to shape and is all skined. It is a full scale plane and you can go as far on detailing as you want. Instead of the OD I covered it with crome Mono.With a lot of detail have never flown it but was told they fly great . But you only make one mistake and there is no rebuild. I have had this plane since 1976 bought it from Royal Products in Denver before they closed. Sum of the kits are still made in Japan. It should be worth at least $200.00 depending what the wood is like , should be OK . Have fun and don't hurry the building if you build it looks great with retracts.
PS I put a 110 engine in it. my F4U had a 60 to start had to go to a 90 to have anough power. The Black Sheep flies great know.

Over on E*** they seem to be going for between $150-$190 when they have come up lately. Seems to depend alot on the condition of the box (ie collectability)