Looking for advice from anyone who has recently chosen sliding doors for their project!
We are at the early stages with the builder. It's a slightly unusual situation in that we are using a friend who has recently done a very good job on two houses owned by people we know. We only have the plans we submitted for planning which he tells us he can work from but it's proving trickier when trying to source things like sliding doors as don't have exact dimensions.
Ideally we'd like to use Sunflex SVG30 or similar as we're after slim sight lines. Would suppliers be able to quote off the plans below? The builder has come back with a quote of £14750 ex VAT for the sliding doors/fixed panes from a local company though he hasn't yet seen any photos 
If anyone has any recommendations of sliding doors they've recently installed it would be great (even better if they don't mind sharing costs as I have no idea what we should be looking for at this stage!).
Thanks in advance