Roof not working - worst case costs

Hi All  
Looking to buy a wind hopefully for the summer.  I've been watching a few on eBay etc and at least one has been listed with a faulty roof.
Can anyone give me a worst case to repair a roof - i.e. motor and any special tooling or dealer only.
Just trying to get a feel for whether it's worth buying one with a faulty roof at the cheaper end or giving one a wide berth.

Any help appreciated

Regards. Ian

To be honest I would probably spend more and get one with no faults. There have been a few advertised on the Facebook group that have been well looked after.

If you put struts in the search field at the top you will see some information there.