I confess I have never thought of Glasgow as a tourist destination, but perhaps your two nights there are for practical reasons only?
As for suggestions Edinburgh - Skye, will you be driving? Also, just how much do you want to visit Skye? I ask because it's quite a journey from Edinburgh just to spend two nights. There are many, many lovely places much closer including the Loch Lomond area, not too far from 'Glazzgie'. I would consider doing a circular route Glasgow - Loch Lomond/Trossachs - Edinburgh - Glasgow. You will miss the truly 'rugged' part of Scotland though.
Bear in mind that roads in Scotland are often single-carriageway and so journey times can be a lot longer than you expect, especially in Summer when the caravanners are out and about!
Accommodation-wise, my wife and I (60 & 61) almost exclusively use AirBnB these days, mostly because we like to have a bit of space (we go for 'whole house' properties), we experience much more local flavour and have our own kitchen.