I want to build a Royal P-38 and have been looking at pics of kits for sale. Do the older royal kits have foam parts? Are there differences between the older kits (that came in a blue-striped box without a picture of the airplane) and the newer kits?

Anything I should be aware of before shelling out too much cash for a kit? Why a Royal kit – because the 74”ws works well for me and I want it to be somewhat scale.

btw, have one for sale?