ok sorry for not updating earlier but got a beer in my hand and got distracted
got recovered today after getting a air stapler (needed one anyhow)
used a bit of shrink wrap to add the extra waterproofing
this is a three hand job to really pull in the stretch and staple nicely (volunteer got the stapler)
throw the new vinyl in tumble drier for a few mins first and staple front and back
try and pull in the 'arse hump' part first to pull that in
then work away to pull in any wrinkles - it came pretty natural of what was needed to heat then pull (dirty minded jokes are expected)
the end result