I fancy this next year as a target to train over the winter and I don't fancy doing a road marsthon.

Something like an x-talon 212 or a Roclite sounds ideal for this then?

I'd have absolutely no idea what kind of pace to run the sections between the climbs though, total unknown entity. Start off slow would be wise as ever I guess, lol

Sounds and looks like a monster especially the last climb.