Offset and rim size 99 Hilux LN167r

[_LowKey_]

Hey guys and girls,

Looking at getting some new feet for my hilux, currently have hankook dynapro atms on 7.5inch wide steel 15in rims, 31x10.5s.
Going to upgrade to hankook dynapro MT's still in 31x10.5, Will also buy another set of rims so i can keep at's for summer driving.

Does anyone know what size rim and offset will be best for me, hoping to order the tires and rims in time for this weekend, No pressure tho!

Cheers team