I'll assume that everyone agrees with that price. And I'm quite happy with it. So where do I go next?

Do I start a machine build log and ask all my question in there?

Today I've re-thought my business plan, and I'm happy with it. Building my own CNC was possibly yet another delaying tactic I was using to avoid actually building and selling product. My plan was outsource all the cutting and just do the dust free manufacture and assembly myself. But now I've changed the plan to hand cutting the panels using templates and manual router until such time that sales justify building my own cnc router. This means all production is in house which appeals to my nature. And I can start producing now, without having to work through setting up cnc with a supplier.