You have made a great solution perhaps using lateral thinking to what many have tried in different ways. So this is perhaps the 7th different disk setup so far I know of on a 1K.
1. Dattoman1000 proffessional setup
2. The above Kiwi setup
3. late sylvia setup (no details from ausrotary member)
4. Sigma ge mix and match
5. Laser setup by dattoman again
6. Late Vanette front end setup (no details but complete front end change by previous vb10 owner Paul Monk)
8. Mazda rx7 setup on steveos race 1000 previously owned by steve newing and other A series engine specialists in NSW.
This aint too bad for a rare car with a rare wishbone setup!

Blowhard any reason for using gx hubs and not 1200 coupe arent they the same?
Also how did you manage different calipers? which calipers are you using? and will you still be using the nissan rims (which nissan are they from? sorry forgot to ask as I want to run steel rims on my van and low profile 165/55/14s with harrys whitewall add ons. I plenty of alloy rims in 14s that fit perfectly without rubbing but want to also run big chrome hubcaps and these rims seem to suit my needs)