SBP 15in Rims and tires

Hey guys im looking to replace my old 14in steelies with some aluminium 15in rims, for two reasons i just added headers on my 72 duster and they hang low so id like to up my ride height a little bit but also its easier to find rubber for 15s any suggestions or if you have a set id like a little wider in the rear of course nothing crazy 240-270mm front i was thinking 205-215mm Both by 65-70 if possible. Also im back in the states so mailing would be US to Florida, let me know what youv got thanks guys!