A lot! I think the build will be the around 1500 to 2k? But to be honest I've kind of lost track! The biggest cost so far by miles is all the tools I have bought for the project. I keep realising I need another bit of equipment. From drill bits to taps and tap wrenches, centre punches, transfer punches, counterbores, a router, drill press, cut off saw, band saw, lathe, welder, callipers, dial indicator, computer, software etc etc the list goes on - so who knows. What I do know is I've learnt a huge amount and loved the experience so far... Look forward to seeing your build.