Hi guys well I've been busy and taken bull by the horns ,after a lot of searching I found that there are quite a lot of toyota models that use the same complete struts either front ,back or in both positions as the 2nd gen rx300, so I ordered coilovers for a 1992 ,2001 toyota camry, brand knew, made by maxpeeding rods £180 for all 4 , they arrived from Poland and I stripped off the old air suspension and fitted coilovers in a day,I had to slightly elongate the top mount holes on front upper mount holes ,and all so the upper holes in the rear lower mounts.( Also standard drop links fit no problems)
I have left the height sensors connected,but have removed air pump and as much of the piping as I can ,I haven't yet removed air suspension main fuse but I will it just means light flashes on dash, all of the adaptive lighting works still, I adjusted the preload off a bit from factory setting and the fire is as good if not better than on air suspension,it's great on country roads in the bends and smooth on motorways.
The only thing I would say is that I may have to swop the dampers only front to back because front slightly low and back slightly high but didn't affect handling.
overall the car feels great and very responsive and comfortable on all roads in very happy with results