JerryH
Welcome to the asylum
There are a lot of hacks that are already put together, just search for goldwings with a sidecar. Sometimes buying one that is put together already is the way to go. But it will give you some type of idea what looks good together
Additionally check with the vendors forums. Sparrowhawk with DMC has 30 sum years experience with sidecars. (West Coast)
Also Claude with CSM (East Coast) aton of experience
Good luck
Bob