Slyder I had the same issue....trying to dry all the stuff. No heat...really just a small amount of air flow overnight and its done. It's just a small squirrel cage blower with electric motor that found for $5 at a building material recycle store a few years ago...its an all steel industrial thing that weighs like 20 lbs but is fairly quiet. It would be easy to jerry rig a bathroom or stove hood thing or one of those old portable hair dryers with to tube and plastic hair cap. The pvc and T's also gotten at the building recycle place; is not even glued up and there are caps to block off the un-used ones. The whole thing cost me about $15 and a few minutes of time.
Perhaps easier is like my diy ion cannon... a pvc 3 or 4" with an old (6 vdc iirc) computer fan wired up to a matching vdc wall wart then do up an adapter to the rack piping.