I haven't got space for a TIG. However a couple of weeks ago Hofer had an inverter gasless MIG about the size of a Commodore 64 power brick, not including the spool of wire. Can't say I wasn't tempted to get myself a hot-glue-gun-for-metal kind of tool.

> gasless MIG

I hate when people use that term the G in MIG stands for Gas. If you are not running a Gas (argon, CO2...) it isn't Mig. There are flux core wires that are commonly used and called Mig, but they are not Mig (unless there is also a gas flow - this isn't uncommon) and have very different weld properties.