You may have sorted your query by other means since last August.
I can offer three suggestions. All three source their data from the Open Street Map (OSM) data base.
Thanks Alwyn - I probably would have removed this post by now (as you can see it's had a huge amount of feedback over time) but I'm not sure how.
I did manage to get some elevation profiles from Kazrobbo and then found more on the 'outdooractive' website which I have posted on this site.
I will definitely have a look at your suggestions especially Windy Maps which sounds intriguing.
What I was trying to do was get more of a gut feeling for what I would be walking into - up mountainsides or along asphalt or a pleasant riverside stroll - and I eventually came up with a simple method.
I've imported the various routes (Official VF / Lightfoot guide waypoints) into Google Earth and I'm using a feature which lets you fly along the route lines that are layed over Google Earth (works best with the Official route - in the Lightfoot case it runs from point to point stopping at each one for a few seconds).
When the route section is ticked / highlighted in My Places (after importing) a small folder appears alongside the up/down arrows.When opened it starts a tour along the route on Google Earth.
Speed - camera angle - camera range are all preset but can be adjusted - "fly along lines" must be checked in the Tools/touring section for it to work.
It's good to give you a more realistic idea of the route I think - also for problem solving and working around tough sections.
You can also stop the animation and follow the route manually to have a closer look at some sections or pull back to have an overall look at a section.
Anyway food for thought - as you can see I'm spending way to much time on my little project.
Good luck with your start this year - hopefully the Coronavirus won't put a spoke in the wheel !