9x24 tyre etc.

[rustexpert]

In a lot of assorted tyres I have got a 9x24. It is looks fairly good for further use assuming it will come off.
I would sooner swap for a 40x8 only for use on a trailer so need not be great.
Also I acquired a zero offset 40x8 rim; which I haven't seen before but would suit my needs perfectly and was considering modifying offset rims at some point . Does any body have any other zero offset 40x8 rims they don't want to retain?