I'd be tempted to keep what you have and look out for cheap gas stove.
Have you seen this hi gear blaze on ebay (finishes at 9pm tonight). Can also be had at go-outdoors for £24 and appears to be identical to the fly-ti sold on bpl for £37.99
Very lightweight but doesn't get a stunning review here
You need a Primus Express Spider stove, available for about £38.