Typically, you'd have to be apart of the GB and have someone assemble it for you and shipping it and what not.
I'm not aware of anyone on here that has the capital to fund this sort of venture, especially going by the unique customizations a potential buyer would prefer.
Mostly things here are personal rather than commercial.
Other thing is to wait for someone to sell theirs, like DanielUCF is selling his iirc to fund his wedding, check it out.