Repairing MKi roof

[genericguy]

Think I already know the answer (not possible) but just in case:
My roof has come apart at the seams, it is the part above the zip and the stitching has come undone on both roof to hard plastic bit and the harder plastic bit to zip fabric (can do a pic if this doesn't make sense!). Roof is still complete but screen is sagging.
Anyway, was thinking of putting the roof from my deceased mkii on it, but I actually quite enjoy roof up but unzipped driving.

Does anyone know of anywhere (pref near Reading/Slough) that could do a repair (and a vague idea of cost would be excellent).

Thanks in advance.