18" wheels

Can somebody fill in the blanks for me? Running disc brakes and 8-3/4 from a '73 dart Sport on my '69 Valiant. Wanting to mount rims without spacers, moving springs, or major fender mods if I can

Front
18"x8" with 245/??/R18 and 5.25" Back Space
Rear
18"x9" with ???/??/R18 and ?.?? Back Space

Considering going with these. My little grocery getter has fresh B5 blue, thinking dark bronze with a machined lip..

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