RE: Douglas DC-7
John,
What was the flying weight of your 1/10 DC-4? And what engines will you use in the new version?
When I built the DC-6 I wanted to make a custom set of gear and made mockups. In the end I used plain retracts but a custom set is really what we need. Here is a photo of the mockup along with another gear for the Convair project. They were never finished but something along these lines would work as they are fairly straightforward gear. I think the nose unit would need to be custom too because of the angles involved. The only complication is that you need to move the fuel tanks out of the inboard nacelles to make room for the retracted gear.
Have you started the wing construction?
Paul