@Sam_100, the VF workshop manual describes Blower Motor Replacement on page 7547 of 11631.
It references Instrument Panel Outer Trim Cover Replacement (page 599) and Floor Front Air Outlet Duct Replacement - Left Side (page 7554) as well as Instrument Panel Compartment Door Opening Frame Replacement (page 600).
Sadly the way the document is written requires the hyperlinks to work but such hasn’t been preserved within the PDF. That means you need to learn how the document is structured so as to navigate the sections manually. Unfortunately you can’t simply click on the blue referenced text.
As mentioned, use the bookmark/index which is usually on the left pane of the PDF viewing application as that makes manual navigation possible.
As is, it definitely doesn’t look like a dash out job so I would be rather sceptical of that dealer and their skill as I’d expect they should be able to quote accurately.
If you do try and pull the fan yourself, it may simply need the bearings cleaned, oiled or greased...
Spending a cold Sunday learning the workshop manuals sectional structure would definitely be helpful as time goes by. Much easier to do if you are under quarantine or even lockdown (if you are indeed in parts of NSW or VIC).
Good luck with it.