Hi
@david k
I have just downloaded the Pinnacle size chart & I think the Arkose may fit.
My reasoning is this.
Recommended range for the large is up to 6ft 1 (I know your 6ft 2).
However, it is easier to make a smaller frame a little more roomy than shorten a big frame.
A longer stem than standard would give you this extra room (as would a laid back seat post), the store should be able to do this (stem) for you & IMO, possibly FOC.
Also, if you look at some of the Pro's on the major tours, many of them are racing bikes much smaller than you would think is "normal" for them (6ft + blokes on Medium frames).
I know that they are all supremely fit athletes & weigh about 8 stone 2oz a dozen & that they are much more flexible than many of us, but they are doing this with longer stems &/or laid back seat posts.
Personally I ride a size 58cm Cube & a 56.5cm Sintesi, one size smaller than recommended to me but fit great (without a longer stem).
The only true way of knowing for sure is to test ride one down at
Evans.
If it isn't perfect then go for a 2015 model & have them order in an XL.
Edit.
I am 6ft 1/2" approx (if it helps).