Firstly, a confession...I'm new to land yachts so as far as I'm concerned, a 'boom' is the sound the tyre makes when you put too much pressure in it...just putting that out there.

I'm about to start building a mini and during my quest for windsurfer parts, I picked this unit up very cheap... figuring that if it was actually knackered, it would at least be a good source of parts.
It actually looks (to my untrained eye) to be in reasonable nick if I can figure out how to use it. So I went to Dr Google to see if I could find some info on how to rig it, adjust wheel alignment, operate it etc etc...but I can't identify it.
Seeing as it came with bags, it kind looks shop made but maybe it's home made by a very clever person.
This photo is from the auction...
This is when I got it home and pieced it together to see how it all fit.

The rope from the end of the boom attaches to the end of the fibreglass seat, which seems strange to me because I'd assume there would be a fair amount of pressure on what seems to be a very lightweight anchor point.
The mast is aluminium tubing, (3 tubes thick and stepped at the join). The frame is all steel, steering rods and pedals are stainless.
It'll need a good clean, maybe even strip the paint back and re galvanize the frame it if not too expensive. I'll check the bearings and replace anything rusty or corroded before I risk my neck in it.

In another post... 'kennatt' from the UK suggests it might be a 'kirawee bundeena' but can't find any info on such a beast.
So it seems to be some sort of class 5, but all the class 5 yachts I've googled have a very different shaped frame that seems to sit above the rider's legs (probably good protection in a spill) and the rope and pully section seems to be in the centre of the boom and connects between the riders legs.
I've not seen any photos of one that look like this.
This frame is more like my badly made drawing below...

I'll take and post some better photos soon, but can anyone identify this yacht or give me any pointers on how to rig it, align wheels etc?
Cheers!