If you are planning to launch at the basin in Linlithgow you wouldn't want a big rig... I can get you some pictures if you need it but the slipway is not massive.
There is a slipway along (1mile east) of the town at the Park Bistro. Its closed with BW bollards - so you'd need to elicit their cooperation. It MIGHT be more suited to rib launching - although I've never looked to see how far in it goes... Potentially better parking there too.
On the phone here so will post the link tomorrow, but a search for "forth and Clyde skipper's guide" will provide a map.
My only advice at the mo is if you run premix, lean it up a bit!
I believe there may be a group whose draught won't allow access to the union toying with heading for Granton from Grangemouth to watch the fireworks. Mail Ronnie for more detail.
