I'm roughly $2000 into this project and estimate at least another $1000.  So around $3000.  I have almost everything I need to finish I just need the resin, gelcoat, and silicone.  I have the resin and gelcoat on standby and just have to pay for it.  With shipping it will cost me around $650.  I've still to price out the silicone, but don't expect it to be a major cost in this project.  Maybe a few hundred bucks, and there is some extra figured in for pot scrubbies, which I will need to get really soon so that I can start trying to cycle as many of them as possible.