Rustysdream, any dealer with a Kimpex catalogue can order one for you.
Jameserizer, I tried your heating pad option the year before I installed the coolant heater. Honestly? It sucks balls. Majorly. Which is why I went with an inline coolant heater. Best money I ever spent. Well, except for the three-nippled hooker I once bought on a dare. Talk about bang for your buck!
The heating pad simply doesn't heat the cylinder nearly as well as the coolant heater. Not even close. You ever get a big overnight snowfall @ -5 Celsius and then wake up at 7am with the temps @ -35 Celsius? I simply don't have time to wait for hours until the cylinder heats up enough to allow the bike to start. Been there, done that. This isn't like waiting for the toaster to make toast, I have to clear the driveway before going to work.
That's not what made me throw the heating pad in the garbage can however. You ever take your Rincon on a weekend ice fishing trip? Get there Friday afternoon, sleep in the ice-hut Friday and Saturday, come back on Sunday. Not a pleasant feeling when that POS heating pad decides to stop working at -35 Celsius.
The coolant heater does a better job, has never let me down, and is surprisingly simple to install. Also, I don't leave it on year 'round, I bought a second hose just for the coolant heater. I run the stock hose in the spring, summer and fall, and then drop the coolant in the winter and install the heater.
I highly recommend it.