No problem, let me know if you don't have any luck, I have a few more contacts you might be able to try.
Ok Koni Yellows in my opinion are too hard for road use and coupled with polybushes will quickly leave your bodyshell weakened with stress cracks, stiffer is not always better. Which springs are you running? For the 33, Eibach are the best but are NLA so the next best ones that are available are from H&R in Germany, their progressive springs give a decent ride for every day use and firm up nicely in the corners to reduce body roll. Suspension choices are all down to what you are using the car for or what you are trying to achieve. I think Whiteline in Australia used to make uprated ARBs for 33s at one point, that may assist with your handling too. I have an Eibach Pro kit front ARB and the handling was significantly improved, much sharper turn in and less roll. Unfortunately they have stopped making them now and they didn't sell many so your chances of finding one are remote.
If you want coilovers there is only 1 option and that is Intrax from Holland, luckily it is absolutely awesome stuff but very expensive, you are looking at around 2000 euros:
http://en.intraxracing.nl/merken/alfa-romeo/33/alf5567-1k2/
Interesting what you say about the car being set up for driving on the wrong side of the road, do you have any specific examples out of interest? One interesting thing I found on my car when dismantling it was that the rubber seats for the rear springs are different thicknesses. The thicker one is supposed to be on the driver's side to compensate for the weight of the driver but on my car it was on the left. I guess they didn't bother to swap them over for RHD but I have put the thicker one on the right on my car.
If you need any more info feel free to ask