Hi again Dydigital... I will be interested in what you come up with as I have the same boat as you
I have made a few spray cover in the past..like these ones here.
The cover is just the cheap tarpaulins from Screwfix ..cost a couple quid
To hold it all up...I use broken fibre glass rods for cleaning drains ..or cabling electrical conduits
I have used carbon Fibre kite poles in the past too..you get them cheap in places like poundstrecher for the kids..again only a couple pounds
I use an old sewing machine to sew the tarpaulin to give it all a bit of shape and strengthen the edges etc
I was going to sew a couple of plastic "sleeves" onto the trim around the quicksilver bow to slot the support rod ends into. Thats the beauty of this boat..its easy to attach a cover to that trim.
I was going to make one for the Quicksilver..but never got round to it..its a very dry boat compared to these two skittery wet things :-D
Just some ideas to save spending £60 squid on a ready made one ..if you dont need to.
As mentioned..I will be interested in what you come up with too so post the results