Haha loved watching this, just back from Arran today after touring in the campervan, you missed the boat house at Dougarie beach which is amazing, also Goatfell which is an amazing climb, and yes i have a hoard of Arran whiskey and cheese home with me :-)
Yeah, there is a good few buses that can take you around the island (324, 323... etc) Of course, public transport would be slower but you would get the same experience and it probably would work out cheaper as you wouldn't ferry a car over. Have a wonderful time :)
