Here's my use for built up model kits. I mix in one here or there as necessary to round out a collection. In this case I have the 1/144 Topping 880 and 990 but I understand there is also a TWA 880 version out there somewhere though I have never seen it. About 20 years ago I acquired the Microcscale 880 kit (really tough kit to build BTW) and it found a spot in the collection. Note how the clear coat has yellowed. If I knew anything at all about modelling I probably would have used paint/clearcoat that would not have done that!

Anyone know how many different variants of the Topping Convairs were produced? OK, now I have committed the sin of thread creep.
Cheers,
Ladd