Morning Glory extraction

[Zany]

I would like to try extracting LSA from HBWR using this method http://www.clearwhitelight.org/hatter/LSAextraction.htm ... apparently you get 50ml of liquid which is the equivalent of 150 HBWR seeds (i think theres a typo in the ingredients list where it says 128 seeds).. sounds pretty good but does it work? also i live in the UK, what can i use for the non polar solvent and what alcohol should i use? it says vodka can be used but is this true??

if this works it seems excellent, 1ml = 3 seeds

one more question though, could i use half of the amount of everything and get 25ml of liquid being the strength of 75 seeds?