Just had a very quick look. There are quite a lot of 'trig bolts' on Skye.
I could easily supply spreadsheets for Landranger sheets LR23, LR32 and LR33 to hand but this forum won't let me attach such files.
If you contact me via Yahoo group Trigonomy I will gladly supply these from there. No cost of course, this is a hobby.
If you (and others reading this) are not already a member of Trigonomy, you are invited to join - I am the Group Owner. https://groups.yahoo.com/neo/groups/trigonomy/info
Failing that I will upload these files somewhere on the web, probably dropbox.
Hope this helps,