1200 control arm bushes will fit the 1000 upper and lower control arms, but for our lower arms you need an appropriate sized crush tube. I used the crush tube from a gemini this is the exact one here and it fits perfect:
http://www.nolathane.com.au/product_d ... mber=46022&sans_vehicle=1 Radius rod bushes are the same as the datsun 620 model (maybe even the 1200, I can't understand what the wiki says). Might need a part number here 54481-18000, it is still available.
Idler arm bushes can't be found but 1200 idler arms fit perfect.
All sorted, I went through a bit of trouble figuring this all out. We covered it on datsun1000.com if you haven't seen it