Found some Fermex, did a bit of research, found out it should work. Arrived today so I thought I would put down a trail batch with what I had about the place.
2.2kg raw sugar
2 cups light malt extract powder
6 wheat bix
topped up to 13L
sg 1.060 uncorrected
pitched 25gm yeast into a 300ml starter on the stir plate @ 28'
within 12 mins running to the shed to dump in the fermenter before it poured out everywhere.
almost made it :))
this pic was taken at 10 mins