your doing a really good job mate, where abouts did you get the sliding windows from for a mk3 door?? and how much did it cost?? keep up the good work
Simple answer is i made them myself after collecting all the various needed bits from shows and then buying a sheet of polycarbonate from screw fix and carefully cutting my windows with a straight edge and a jigsaw.
And going from my spreadsheet they have cost me a total for both doors...
Pair of Mk1 sliding window channels £15.00 (second hand)
W Shaped Window Seal (5 meters) new £20.00
A handful of crappy window catches to which i then later played with to make up a good set £6.00
And the my 610x1220x4mm sheet (pack of 2 but only used 1) of polycarbonate for £55.29
So in total and considering i still have a spare sheet of the polycarb it's cost me to do both doors, £96.29
Although one thing i will say is i might consider changing and remaking my windows at a later date in possibly 6mm polycarb, but the 4mm is perfectly fine for road use.