I don't know how much you guys usually spend on multi-pocket vests to cover up your guns, but I found a nice one on sale here for $49.
They're not designed for concealed carry, but I would hope they should cover up your gun anyway.
They also have a jacket version with removable sleeves, and that's $119 (not on sale).
Or this summer carry lightweight vest for $62.
If you're interested in fast-drying travel clothes, ExOfficio makes great stuff. I can travel with one pair of underwear, wash it in the sink, and it's dry within hours.