Perhaps not directly relevant, but just shows what can be done at what cost.
Finally got the screen back and on the car today on AE01 after 3 months. Total cost <£350 as an Ins job.
BUT and this is the thing, it was a one off special made curved screen (Pilkington), and the guys at Nat Windscreens stripped it, refitted the new glass, and re-sealed with new rubbers, and re-fitted to the car etc. a superb job.
Personally I would want a professional to do all that, just in case, oh and cost for a flat screen should be a lot less....