I already had most of the tools I needed, along with some good sanding pads and a David combi plane, because I find that using surfboard making gear for doing a lot of wood finishing jobs at home is usually better than the crap that Bunnings sell, and usually cheaper.
So from memory, the basic costs were;
$140 for the Blank (6mm T band stringer)
$190 for the resin, 6oz warp cloth, 10" fin box, 100gs Q cell, leash plug, sanding discs, 4" brush.
$36 for Foam Ez Square
There were probably a few other bibs and bobs, but some of the stuff I made myself from scraps I had around the house, like the callipers, the edge marking tool was just a lump of old board foam cut in the shape of an "L" so you could just shove a pencil through the foam. I also made a Fred tool for cutting the rail bands accurately, but I didn't use it much because it was too slow, I use the planer and was really carful about counting the number of passes I made.
I already had a 6" squeegee, but if I had to buy one it would have been around $12.
I used less than 1 Lt of acetone, which I already had at home.
I did not do a gloss coat, so that saved around $30 in resin.
I came up with a way to safely do the wet rubbing with an old orbital sander and I already had disc cement along with the RCD extension lead, plus the house has RCD protection.
I guess I'm also lucky that I'm so close to some of the main board industry suppliers at Brooky and Monavale, I could just pop down there anytime to get whatever I wanted, I must say the shopping at Surfblanks was a real pleasure for the one-off maker, everything is beautifully laid out like a self serve, with prices marked and as you're shopping the sales assistant will come up to you and ask if you want all the gear packed for you so you can continue looking.
I can tell you that the really big component is the time.
I forgot to mention that I have an incredibly tolerant wife, because the mess and the smells can be very difficult to live with, and that's before I've even considered making a board