If you've already decided on the stitched vinyl you should ask how it's to be attached to the firing strips/overhead. Make sure he uses stainless or aluminum
staples or tacks. If there isn't any foam backing then you have potential for a sweaty overhead in cold weather
(not that likely in Ft Meyers). Either you need a foam layer above the vinyl on the overhead or some form of vapor barrier at the headliner
. You don't want the temperature at the inside surface of the overhead be close to dew point else it'll sweat. In your humidity it's critical.
If there's any hardware
on the cabin
top/overhead (with though bolts) this is also the time to check their integrity and/or re-bed them.