For some reason I'm having visions of someone jumping canals on the KTM.

definitely.  I can see I'll have to get a new map.  The one we have here is
not visible ATM - just found "Stanford's Canoeing Map of England and Wales",
showing canals and rivers suitable for navigation by canoes and other light
craft.

somewhere, we've got the equivalent for bigger boats, but it's at least 30
years out of date.

Question is, are you going to leg the boat through the tunnel(s)?  That's
something I want to do, soemtime, just for the sake of being able to say
that I've done it.

I presume you named it? that name cant have been a coincidence :)

Have you ever seen the contents of a womans' handbag???

Actually, the butty is more generally associated with working boats.

once they fitted working boats with engines, someone worked out that they
could tow another unpowered boat (same as they used to use when they were
horse-drawn, more or less) and haul more cargo.  The butty would haul more
cargo than the motor, on account of not carrying an engine, and losing space
to the engine room.

while visiting some friends in Cheshire, on the way to a handy pub, we went
to see this:

http://www.streetmap.co.uk/newmap.srf?x=357820&y=359020&z=3st=4&ar=Y

and found a middle-aged couple with a very nice boat just approaching.  took
the opportunity to educate the various small people we had along about how
locks worked, and got them opening and shutting gates.  several of the big
kids also played...

the boat was a cracker, with a lovely-sounding engine which I think the chap
said was 80 years old, sounded like a single-cylinder 4-stroke running at
about 150 rpm or so.  I was tempted to ask for a look at it, but thought
that was a bit cheeky.  His missus did a much better job than I reckon I
would have at getting into the lock through one gate, too, with no sign of
cheats like bow thrusters.

it's rather a short staircase, mind.  only 2 locks, but a genuine staircase
even so, with just 3 sets of gates.