Sorry, I posted than vanished for a week's holiday with no working internet connection!
So, in no particular order ...
Yes I will be taking orders!
This version uses my Funk Firm Vector upgrade sub chassis and motor. I have got to say, although my sub chassis looks nice, Arthur's carbon fibre looks just that bit nicer, and however be gets it cut (water jet? Laser) is just that bit sharper.
I'm tidying up the second draft of the assembly instructions, which I'l post online.
I have done the design in Google SketchUp, and can ship .skp files or PDFs of various templates.
The end-grain balsa I have found is lots of little blocks glued onto a scrim (netting) it needs rigid layers above and below to stiffen and strengthen it, but I am sure there are alternatives to carbon sheet, e.g. aramid, aluminium or GRP or other plastics. I am not sure how well balsa routs; it is quite soft and fibrous.
I'll certainly do a set of parts; i.e. cut MDF, cut, assembled, drilled suspension units and (if needed) a sub-chassis with motor mount; but given the dimensional tolerances and variations of PT1s, it will require DIY competence and tools to finish properly.
As my preferred alternative, I'll offer an upgrade service, or (faster turnaround if I have one ready) a part-exchange.
At a rough guess, a plinth, top-plate plus suspension kit of parts, to upgrade a PT Funk Vector (as above) will be around £160, and and assembled sub chassis plus motor mount (for a PT1 with Escap motor) will be around £140, and a complete conversion of an existing PT1 could be anything from £350 upwards depending on the configuration – the parts aren't cheap! I can see why companies charge £1K for a slab of wood with a motor and platter, once it reaches a hifi store!