Well, leaving aside exotic cases as per your request, first thing to do is get a hold if a noob case. Buy a used 111, 005, 390, the older the better generally speaking.
Lugs will have to be drilled to fit double screw bars (WSO are the best), crown tube hole will have to be drilled to accept the correct round crown tube (DSN has it, rolli might help you with this as well).
Davidsen's pre-v crown is pretty good and the only option afaik.
Crystal is better replaced by Davidsen's "french" sapphire.
Provided you don't find a "fatty" CG (I couldn't find one in the last two years), DSN is your man for a pre-v CG also.
Hands are not a problem, FGD hands will come with your rolli dial and they are your best option anyway.
Contacting Jakob is no big deal either, he has his own section cover at repgeek.
In short:
Rolli/FGD: dial, hands
Jakob: caseback
Davidsen: crown+tube, crownguard
M2M: case set
EBay (WSO): lugbars