Smoke system using used propane torch bottle?

If you have 12V power, an in-tank fuel pump from many GM and Ford cars
does a good job pumping 10W oil from a one gallon lawn mower gas tank.

The pumps can be obtained for free at a busy auto repair shop. The
in-tank units combine a pump and a fuel level sender. When the sender
goes bad (common) the shop replaces the entire unit (the sender is not
sold separate) and tosses the old one in a box "just in case we ever
need a pump". The box fills up pretty quick.

On the Canuck I ran a 1/4" line to a splitter block, then 1/8 stainless
lines to compression fittings brazed into the exhaust manifold header
pipes about 2" outboard of the cylinder head. Excellent smoke
quantity.

Dan