Re-fitting blinds in angled bay window

[ohreally2019]

We have two bay windows with four panes of glass in each. We had 4 individual roller blinds on each window that we had to remove the brackets for during building works. I contacted the shop that we bought the blinds from originally but they want £160 to install the blinds again! Seems very steep...
Any tips or installation guides we could use, to see if we can fit them ourselves? Or is this something best left to the experts? Thanks!

Can you take a photo of the bay? We installed our own blinds and it wasn’t in the slightest bit difficult to do, just used a tape measure and angle, took a couple of hours.

Thanks- Not the best picture but hopefully clear enough?

£160 isn’t steep. You’re paying a professional to do a job properly!

This!

Grief, there's some rich buggers on here.

If they were originally fixed to the ceiling I used these:

https://www.screwfix.com/p/easyfix-self-drill-plasterboard-fixings-metal-32mm-100-pack/2422H?kpid=2422H&cm_mmc=Google--Datafeed--Screws%2C%20Nails%20and%20Fixings?kpid=KINASEKPID&cm_mmc=Google--TOKEN1--TOKEN2&ds_rl=1249413&gclid=Cj0KCQjwib2mBhDWARIsAPZUn_lF9ABLP7zGh6AOXbdns_i3SEAuS0N7AHYi-xCH3H7g9sXHbrdISdkaAu9qEALw_wcB&gclsrc=aw.ds

NB although it says they don't need pre drilling I found it better to drill a small pilot hole.

Thanks for the replies. It's all relative, I just felt that was a lot of money considering I'm a recurring customer and bought the blinds through them originally.

Thanks for the note on the screws. It's more how to position the brackets, making sure they are in the right place etc that we were nervous about doing ourselves. In looking online they talk about measuring with pieces of paper for angled bays, makes it all seem very complicated!