I don't know about the availability but in the US we can get a small TIG for around $225 at Harbor Freight. I have both a small home/hobbyist MIG and this small TIG. I am still learning the technique but common wisdom says that if you can get the "touch" that the TIG will produce cleaner/nicer welds. Of course we are also able to "rent" a bottle for lifetime for $80 and re-fills are about $20 so I have one of each argon/co2 mix and straight argon for the TIG.

Anyway, I agree, give it a try. If you got the car for nil and the welder for the prices that are being talked about for your area the worst that could happen is you learn to weld and have a welder for other projects to boot. And I would say to stay away from the flux core wire unless there is no other way. It makes acceptable welds, you just have to chip and wire wheel a lot of stuff off. Sort of like welding with the stick welder.