Well its finally finished, made a bafffle under the flu to stop a lot of flame shooting up it. Painted it with hammerite high heat paint, luckily tho the flu is stainless steel so that can happily turn blues/ purples/ straw colours on its own.
I set a small fire in it to cure the paint off, this was after 5-10 mins
Whilst was waiting for the fire to die down so I could pack it away it started to rain so knocked up a quick cap for the flu, one that has legs on it so can be fitted from the start!
I haven't weighed it yet but over all its not to heave I would say between 10 and 15 kilo max, I used as much scrap as I could the steel for the top is 2.5mm plate out of a skip the few nuts and bolts I used I have had for a while, so the only think I have to buy is the flu and the paint, all in it came out at £27.40, a lot cheaper than the £140 for a frontier stove!
Cheers for all the kind words!