Maybe you can borrow some wheels for the MoT? You'd have to check the specifics for afterwards, whether it's illegal to park on bald tyres or only to drive on them.
If you let all the air out, you wont be driving on them anyway. or just take them off and put in on axel stands... so long as the car is road legal otherwise they cant touch you else it would be illegal to change a wheel at the side of the road

Just borrow some for the MOT.