1998 Dakota Ext. Cab 2wd, manual 318

[GSXReign]

I need pointers to get me headed in the right direction for my Dakota. I want to have her lowered on 22s, I would also like the sniper body kit on her. The ground effects already give a slight lowered look without being lowered on stock rims. I'm not building the 318 for power but more of fuel economy. I need to be able to haul a sport bike in the bed, or a trailer with two sport bikes. I want to be able to use the stock rims during the winter here in Chicago because of the salt, so I thought it would be best to use air suspension so i could raise the truck when I would use the stock rims to get the ground effects as far away from the salt and snow as possible. Would it be best to just do a straight drop, or use air suspension? Any and all advice is appreciated.

Thanks GSXReign