What version you getting (of rims)?
The version 2 rims use 3.50-10 tyres (standard 2.10-10 rim).
The version 1 rims go up to 100/90-10 (2.50-10 rim) - but ok with 100/80-10's.
Version 1 rims cause 4mm offset left, version 2 are aligned.
So you could go version 1 rims with your 100/80-10's.
Man I hate the tyre selector on SIP. Can't see the sizes of the tyres without selecting each one. But the only 10" city grips are 100/80-10 and 120/70-10.
FWIW: