I am not aware of any venue where you could acquire a ready to sail Mini 40. There are kits that provide the base of hulls, cross beams, rudder and keel. Every thing else you have to source and/or build yourself. The construction of a Mini 40 is not a suitable project for a first RC Sailboat, especially equipped with foils, which is a whole challenge in itself. The only sources I know of for a kit is overseas.
https://rcsails.com/cart/index.php?c...e7bppn1q23cto0
The only trimaran kit I know of in North America is
https://sailingisme.com/products/t50...olled-trimaran