I'm in waurn ponds, have about 20kg of alk, cal, each part of mag and potassium left. Let me know how much of each you want and I'll bag it up. I'll look up what it cost me, but it was stuff all and I'll only charge what it cost me per kilo.
More than happy to meet during the day and can do so with short notice (especially if I have the amount pre-bagged)
Cheers!
Sam