Thanks for the clarifications about the RV plans. I understood they are more or less just some “assembly manuals” and so it is very difficult to use them as starting point for a different design.
The option could be to create a complete model from the real kit, even this means to buy all different sections before to do anythink; and this is what I’d like to avoid. I’d not know if it is possible, but in the short term I will be at Vans Aircraft to understand personally what it is possible to buy and get in terms of useful data. Does anybody have some experience about that?
As said, the other options was to find an existing plans (ex. Cessna 310) but until now what I found are much different from the original personal preference.
Francesco