If you have not explored the Glenfinnan area Chickadee ..then you could save a fortune in car ferries by trying there.
Many campsites on the sandy shores at Arisaig..or “wild” car camping at Loch Ailort.
Deserted sandy beaches everywhere you go
Small hills behind Arisaig offering fantastic views over Eigg and Rum.. or low level walks to Tarbet and Loch Nevis from Loch Morar
If its a nice day catch a ferry trip to climb the Sgur of Eigg
Another nice day catch a day trip ferry to Inverie and into Loch Nevis.
Bigger hills around Loch Ailort and Glenfinnan..all with great views
Not to mention sunsets to die for
If the weather is not so good.. visit Mallaig or Fort William
It is quiet but you are also near civilisation if being on your own worries you.
Not too far from home either..a tank full of petrol will get you there and back. Boat trips are short and as you are not taking a car.. relatively cheap
Worth a thought ?