Why would you say ups wouldent like those. as long as there not over 150 pds each we would love those i work for the local ups hub and i see tires shipped all the time you dont package them or anything just weight them and get the label printed up for each tire and use clear tape and tape the label too the tread on the tire really really good and it will ship just fine like that.
Now if it weights alot then ya shipping prices are gonna suck azz but it would be cheaper then buying them new i bet.
Good luck selling them and
Adam