A 1" body lift would increase your tire clearance by 50% and the combination should be plenty for 32" tires. A good basic 1" body lift like from Performance Accessories (my personal choice) is all you need. A body lift is a body lift, there is no additional "performance" gained by buying an expensive body lift from manufacturers like Daystar who cater to the "if it costs more it must be better" crowd. PA's 1" body lift is a one-banana installation job, it's a pretty easy thing to do with nothing more than a jack and basic tools.
Do one side at a time by loosening the bolts on one side and removing the bolts on the other side. Then lift the side without the bolts and insert the spacers. Then loosely reinstall the bolts on that side and remove the bolts on the other side and do that side. Don't remove all the bolts at once as that can let the tub slide out of position when you jack it up which can present a nightmare getting the tub back into position over the mounting bolt locations again.