I stand a lot more chance of having my Z ready for Cadwell than Donnington and I also much prefer Cadwell to Donnington.
how are the groups done, by experience or engine size, if it's by experience I'd go in novice and book now as my H**** 400 would be fun round Cadwell if the Z isn't ready.

Do dynojet kits have emulsion tubes in them?

Sounds like a coil is on the way out

Mine looks the same

Will do

My pictures are also of the under side of the seat, I can do the one on the mudguard tomorrow, though I've no idea whether my mudguard is from a J or an R.

Now on Facebook, if you need anymore let me know

I'll add them after lunch as my phone is being a pain

I'll put them on facebook as it's easier with a phone, seat is Z1100R not Z1000R but is probably the same.

I've got a whole right hand switch you can have or I can just send you the cover.

The switch is tatty and has electrical issues.

Is there any reason why I shouldn't route my oil cooler hoses over the cylinder head (between the coils), it looks like the best route to keep them away from the exhaust.

Looking at the connectors, they will only fit together one way

Anyone know where you can get these from?

My J has a 750 Zephyr swingarm (I think, it might be from an 1100) and a Kawasaki wheel the same width as yours, it has a 160 tyre on it, chain clearance is fine, it has a dished front sprocket to maintain chain alignment.
All fitted to the bike before I bought it.

1985 - 87 GSXR750s have 18" 6 spoke wheels
1986-87 GSXR1100s also have 18" 6 spoke wheels
1988 GSXR1100s have 18" 3 spoke wheels
All of the Slingshots have 17" wheels
Just saying in case you need to buy parts for it.