Here in Holland A2000's could be bought "custom built" much like today's PC's.
I know I bought my miggy I wanted the bridgeboard and a hard card, the dealer fitted them for me and I could pick the machine up later that day.
It is just a standard 2000 with options added, the only other ones where the 1500 (UK only, bare machine, 2 floppy drives, black front label), the 2500 with either a 2620 or 2630 and either a 2090a or 2091.