I'm looking to create my own ROM, but before I do, I want to get some idea of what kind of time/effort commitment I'm looking at investing to do it.
I have an obsession with bad teams, so I want to build a ROM that puts the worst teams in the expansion era into one place so I can play lousy teams against one another. I'm talking 72/73 Islanders, 74/75 Capitals, 83/84 Devils and Penguins, 85/86 Red Wings, 89/90 Nordiques, and all of the Barons, Seals, Scouts, Rockies, Whalers, and Jets you can shake a stick at.
The player ratings won't be difficult to do, but I'm concerned about the logos, uniforms, etc. I'm thinking if I use the 80-81 ROM as a starting point, it will have almost all of that stuff in it already, leaving me with just the defunct teams from the 70s to have to add, plus any of the 90's expansion or relocated teams.
So, for the veteran editors, is this doable, and if so, how difficult does a project like this appear to be?