I'm guessing your paint costs at about £30 as I think the smallest amount the supplier does is 1/4 of a litre which is lots for a pair of forks. I'd have no probs doing the pattern prob take me a couple of hours to prep and paint them. You'd be looking about £60 then.
I could do them with hamerite which I use for car wheels etc which would be cheaper. Depends what you want really