I didn't think getting some Bilstein B8's re-valved would be too bad? Especially since you have the coil over conversion in place already. Seems like shopping around for rebuilds with worthwhile, certainly the companies that do the Clio Sachs vary greatly.
I'm talking with AVO about making 40mm monotube Mk1 Golf style struts with the Polo steering arm grafted on. Single/double/triple adjustable (I think I'll go with double) and remote reservoirs on the double or triples (might as well have the remotes whilst at it). The struts will be new fabrications, unlike the eBay conversions will make it easier to size for the car and ofcourse means AVO can slip in their insert without worrying about trying to fit someone else's housing.
I've got unused Gaz holding the car up now and I'm sure they'd be great, but I've always wanted the Mk1 Golf hubs and Monotubes, just found it hard to get Bilstein/AST etc. to seem interested. AVO are quite keen and my mate Gus has them on his 106 Rallye with good results. Hopefully means I can use the top mounts for castor and hubs for camber. That way can maximise available castor whilst keeping chassis original.
Price...not cheap though....in the H&R+ bracket.
Perhaps they would be interested in making an insert for the Polo strut, would need to take the internal diameter and see if that's compatible with their inserts. Without the housings the price would be a lot more agreeable too.
They also offer strut conversions much like what Gaz do. Again another possibility, though I don't think they'll have done a Polo yet.