just needs a tweak hear and there .as you can see one of the straps isn't in the right place 
but not a big problem. Made my self a frame at the back for the roof to lay on because the roll bar doesn't sit for enough out to cover the interior .Just made from metal tube bent into shape then welded together and covered with heater pipe. Think it looks ok when the hood isn't on,
not sure but going to make it so it slots together in three parts. Then it can be stored away in the boot. Made the in fill at the front out of jam 
(fibreglass out of a tin) put some cling film over the screen header and just started building up until it looked some thing like,, o and drilled 2 holes in the header and put some bolts through into the jam then when its gone of I could fasten it on with them. Then about 2hours rubbing to get it to look something like ,Then took the car to my trimmer mat and he made the hood..Me thinks it looks good ..
Made this for a quick fix in the rain ,can get it up in 30 sec ... pardon the pun 
The factory one was made from 20mm tube , one hoop over the middle(above your head to make the sheet oval) the other one rearwards . Looks like Jill Judds half hood 
Can you get in and out under the flat sheet 
Looks good 
) Ipswich (not too far if you are in north essex) carries a good range of perspex or polycarbonate (this scratches too easily though) and at a reasonable price
polycarbonate's much safer , although as you say , it does scratch. 
