It was completed a little out of the estimated time frame with all of the boxes in the spec and accessories ticked. By this time the deposit was well gone and more on hardware and timbers to say little of the time spent. I put a lot of effort into setting it up properly and done a very good job of it. On the day of completion he was notified and sent a series of high definition photos which he responded to very enthusiastically in words but not with money

A couple of weeks later a payment was received which brought down the balance due to half the invoiced cost. From then, some 6 weeks ago, I have heard nothing more. My patience is running thin about now and I need to start taking some action to bring this to a close.
What I'd like to do is sell the instrument off on the open market and I realise that in worst case scenario thats what will happen. I seriously doubt that course will cover the the deposit let alone my costs as well. I realise it is my error that I built such an outlandish creation and in hindsight should have asked for the full cost up front . It was done in good faith that it would be paid for as all of my projects have been in the past. Many of them purely on the strength of a series of photos and my reputation.
I am a bit unsure as to what course[s] of action are open to me and if any one has any ideas or first hand experiences it would be great to hear them.