Sounds like weak motor, so source one from scrapyard in sharjah sajja and save a fortune or buy new one.
When you know which part is required, then why pay 10k to someone to debug this. It's age of the motor, makes it weak. I had same in my BMW Z few years back - its same story as boot struts, after certain years they dont push or contract nicely.
Probably anything more than 15mm lowering springs and it'll scrub on rough roads if you have 3 big guys in the back.
Your best solution would be to buy a set of quality coilovers from someone like bilstein, koni or gaz then you can adjust to suit.
If you're planning on just lowering springs then heavier duty shock absorbers will be your friend.
I got my Cayenne roof sagging headliner from Sara auto car in al quoz for 1600 dhs where Naboodah quoted me 10K. You can try calling them and explain that it's a convertible roof issue and see if they can help as they seem very professional and committed to good quality work.
I have a Nissan 350Z 2004 convertible. My softop / roof is not opening anymore properly. It needs a strong push at the start to open it, and a push also to close it.
I have been to a couple of garages in dubai. Nobody knows how to fix it. One garage asked for 10,000 aed.
I took it also to Nissan services garage and they estimate it for the same price.
Someone knows a reasonable price for convertible soft top repair, maybe in sharjah or mussafah?
Thanks in advance