No ticks and very few midges, but that was in May. I'd guess the midgies could be a problem in high summer but the sea breeze helps.
The radio is an FT-817 by Yaesu. It has general coverage receiver, and transceives on all the HF amateur bands, plus 2m and 70cm. It does SSB and FM as well as morse, but morse is far more effective when using low power (it does 5 watts out).
The morse key is the classic British wartime 8 amp model.
Morse is still going strong on the amateur bands - about 40% of traffic still goes through the key.
Good trip, Knoydart, but you won't get solitude unless you go off season.