I didn't do CBT. I did the 7 day direct access course, the first 2 days was on the 125cc and the 7th day was my test. Then again, maybe they've included the CBT modules in the 1st 2 days, I wasn't given the CBT form/certificate before or after though.
Don't bother importing the bike into UK. There would be lots of hassles and lights and reflectors might need to make it legal. There are plenty of 1970s 2 or 4 stroke bikes available for under ?1k. Insurance would be pretty cheap too (under ?160 for a new rider on a 1970 CB400T)
As for license...
I'll also add a "scooter" styled bike, Yamaha TMax. Its a 500c parallel twin which is enough for 110mph. It handles like a sport-tourer bike with the engine mounted in the frame and proper forks and mono rear shocks. I'm already on my 2nd one.
Bloody white van drivers...got rear-ended whilst i was waiting at a roundabout to emerge.
Was on the rear brakes all the time and got pushed out into the round about traffic. Luckily didn't get side-swiped.
Van driver said he thought I could emerge and decided not to brake for the...
How tall are you? Because from what I remember the XTs are very tall machines whilst the CBFs are a lot shorter ( I can flat foot the CBF with ease but the XT I could only tip-toe). You don't want it too short so you get cramp or too high and lose confidence.
The SV650s (early ones) are very...
You can quite easily get 1980s-1990s 2 stroke or 4 stroke on ebay and biketrader. The boring choice would be a Superdream
Suzuki SBs were very popular back when people could ride 250s without full licenses: Suzuki SB along with the Kawas Zs
My time with the three wheeler is up, I've exchanged myself one of these:
Yamaha XP500 TMax. Rides like a sport tourer with the convenience of an CVT in town, took a few power rangers today on the twisties too, very easy to ride fast.