I found the wheels of my trailer were just about on the edges and there are some nice sharp metal spikes sticking up from each side in places. Its just too narrow for comfort for me.
I found it easier just to reverse onto the beach on the left of the slip and launch there.
From previous experience it should be possible with the new larger boat, just!
I reckon it would probably just about be possible for your boat but you would need a largish 4x4 and possible isn't the same as practicable...........
As I said before there is a good concrete slip at Achiltibiue at the north end of the loch but it dries out at LW.
Kylesku is pronounced just as it sounds AFAIK, nobody has ever corrected me so far and I have spent loads of time up that way...........