Ok, here's my shot at this base (approx. half), it taste great and I should have enough for 13 maybe 14 curries.
3.2 lbs of Onion, covered with water
Cumin x2 rounded table spoons
Salt x2 Flat table spoons
1 small tin of Tomato Paste (6oz around 160g), actually just figured that's to much, don't know why I did that, but my tomato paste is not great or as strong as the good stuff in the UK I don't think.
The Garlic Ginger Paste x3 semi heaped Table Spoons
Chilli Powder 1 flat table spoon
Curry Powder 1 rounded table spoon
Turmeric 1.5 flat table spoon
0.5 Creamed Coconut Block
125gm Marg
Veg Oil 6fl oz