Spot on there Kiwi, Jon is more than happy to give you an idea of when he thinks something will be done by, but he isn't prepared to let timescales hamper his build quality. And given that (for example) a Sei is considerably more expensive and takes a lot longer to build, I think Jon's basses are an absolute steal. Pricewise, I can't really go into what this is costing me as it wouldn't be fair on Jon but he has done me a bit of (but not a massive) favour.
My bass is a pretty high spec, but even at full price would be worth absoultely every single penny. Every bass I have picked up of Jon's has played like butter and I can go through all my trickiest chops with far more fluency and speed than I have ever been able to on any other bass.
Don't think about it, just buy one!!!