My $0.03. I have a 28 on my 1x11 (11-42) Sasquatch and 30 on the 1x11 Ithaqua (11x46). I did have a 30T on my 1x9 Bigfoot.
I'd go 28T with the 1x10.
Is it direct mount or spider (74 bcd??)
DM if I recall from the pic @muddy posted in another thread.
Yup direct mount