Hi,
It is possible to use a trangia burner in a crusader base by putting a computer fan cover over the top (sorry no pics, camera knackered). The eyelets need opening up so that it fits across the width, but it gives you sufficient height for the burner to bloom. Would recommend the use of a windshield as well though. Fan covers have a high and low side - use the high side.
You can get the fan covers for free at a pc repair shop....
I got the idea from one of the guys on here from a stove realted thread (sorry, not sure who you are) and adapted it.
Another solution is to use a air rifle pellet tin (.177) with a curl of fibre glass rope that is used for sealing woodburning stoves (you can get a metre for about £5) and pour meths into tin (I use the metal base of a survival candle as a measure for the meths - 1 measure boils half a litre of water). The rope acts as a wick.
There are probably better solutions, but either works for me.
Cheers