Yes, this man before buying the gaz gold had avo and hated them, I'm afraid that he can have too much stiff springs, they are not expensive so I can buy a softer set if I found this too much stiff and play with them.

Another friend had a set of avo on a 2rm cosworth and was a pain to drive it on road (and dangerous, loosing traction on every bump), now he has installed them on a drift sierra and is ok for that use, but I don't want this for road.
Time ago I went with another mate that have a set of gaz gold and I liked it a lot, stiff but still capable of being driven on broken roads, so that's the reason I'm interested on those.

I will check what you say (leaks, rust..), this man is trustly for me but is worth checking well the coilovers as is not cheap. If they were good handled with only 500 mi of use (not rally or car stored near sea), should be like new.