Not much gear, not much time and possible storage problems.
How about a hair dryer, bit of pipe and a hole in the ground for an earth forge. Sounds flippant I know but a lot of people use these for their every day forge. A search on the forum should give you lots of ideas for this type of forge but its essentially what I said. Dig a hole, run the pipe into the side of the hole with the end just exposed and hook up the hair dryer. The simplest type of side draft forge going.
Good luck