A few choices Klunk.......depending on the size of the stanchions.....
The pencil torch was about $12.00, the larger but still hand held approx. $18.00...both refillable.....both adjustable flame, both rated to 2000 [F] degrees flame temperature. The largest canister mounted torch is only used for preheat soaking if silver soldering
Using heat sinking including wet kitchen paper towels is a great way of soldering.....I have even immersed a small copper tube component in a 4" vice & then placed the vice in 2" of water as a heat sink.....
The possibilities' are endless
......Bakers soldering flux is also a good standby
... Derek