There are a lot of excellent books about lifestyle in Kintyre which you may wish to buy. I have copies of the books below, but they aren't to hand at the moment, so I can't refer to them.
Kintyre in the 17th Century - Andrew McKerral
Kintyre Country Life - Angus Martin
Kintyre: The Hidden Past - Angus Martin
Although written in the 19th century, Cuthbert Bede's 'Glencreggan' describes life in rural Kintyre. I think there's an e-version available on-line.
Getting back to you query, I'm not unduly worried about the 10 shillings per annum. If you consider that in 1797, agricultural labourers received 1 shilling a day (plus food on top). So you can see that 10 days ag lab pay was not a great deal.
Yes, there are names which came to Kintyre with the original Planters. Following the Wars of the Covenanters, a so-called ‘plague’ wiped out many of the inhabitants of Kintyre in 1647. Contemporary commentators observed that it made a virtual desert of the peninsula. Although the illness is assumed to be plague, some experts have doubted whether it was plague, which is transmitted by rat fleas. It’s more likely to have been a severe outbreak of typhus fever which is transmitted by the human louse and associated with dirt, overcrowding, famine and starvation – all of which were prevalent in Kintyre following the defeat of the McDonalds at Rhunahaorine Moss and Dunaverty near Southend.
To compensate for this decimation of the population, in 1650 the Duke of Argyll controversially brought in planters from the ‘Low Country’ – Ayrshire - to repopulate the town of Kinlochkilkerran and surrounding area. As a consequence of the Duke’s intervention, the town would take on the name of Campbeltown.
So yes, families did move to Kintyre to augment the Gaelic-speaking highlanders. In addition, the population also consisted of people from Ireland - particularly form the Glens of Antrim. In parts of Southend parish there were close links with Ireland.
I'll deal with you other queries in more detail later.