Another example of what I'm getting at would be the classic gaming machine which I believe should be shown with the empty pizza box (from the period) and a dirty sock.
I think that would be more indicative of programmers of the era
FWIW, and, as I have stated in the past, I don't collect, so, I represent the mercenary point of view. For me, I supply the "foundation" for whomever purchases the system. It will be stock, no upgrades, authentic down to the date-codes on any chips I've had to replace with no sockets where there weren't any.
They will get the pre-"well, you're going to need a video card with that..." system.
HOWEVER, I will, to the best of my ability, also supply things that were common upgrades to the system so that the choice of what they "build" on the "foundation" is up to them. They buy them or they don't.
I have, for example, several complete TRS-80 Model I one drive systems that I am, slowly, repairing and bring back to specs. Some of them are so heavily modded that they don't even work which means I have to pull out mods, repair traces, fill holes in the cases and get them working again. The exception are Radio Shack authorized mods such as the Lower Case Mod, the Twisted Pair Mod, the XRX-3 Cassette Mod etc., because they are authentic
Now, if someone buys one, then THEY can decide if they are going to run it stock or put every mod I just took out back in again.