As long as the robot you buy has the same number (the A05B-XXXX-XXXX one) there should be no problem
You will however have to master the robot.
All our robots are second-hand and we have a lot of robots running with different F-numbers.
If you have the possibillity to reprogram the cpu-board and the servodrive is compatible, you sometimes can run a different robot.
We even have a M16-i RJ-3 robot running on a RJ-2 cabinet.
That's good to know - thanks! I really doubt I'll find another 100i that has the matching model number, due to the age, if nothing else, but I'll keep my eyes open. Thanks!