Trailer tow set up 1967 C10

[Blue67]

I am thinking about setting up my 67 C10 as tow vehicle. It has a 327, TH400, power steering and brakes (drums). The coils and shocks need to be replaced but what would be the best way to go. I can go stock or maybe air bag set up if it would be better. I will be towing an 18ft tandem axel trailer with 7500 lb rating and hauling a 68 firebird or a 73 Trans Am. I think they are around 3600 - 3800 lbs range. Any advice would be appreciated. Steve