Sure, my journey was as follows:
Set off 5AM from Gloucester to Folkstone - 194 miles, estimated 3.5hrs, bike was full when I left and had one fuel stop about half way.
Crossed the channel using the train, so had about an hours rest in total there.
I had booked an overnight stop in Aalter (Hotel Orchidee - recommend them), so Calais to Hotel was 80 miles, estimated 1.5hrs, with a fuel stop at the exit of the tunnel. I arrived about 1PM local time. I then topped up the tank before I set off the following day.
Aalter to the Nurburg ring was 200 miles, estimated 4 hours. I did this in one hit, stopping for fuel every 60 - 80 to make sure I wouldn't run out. I left about 8AM local time and arrived about 1.30PM local time.
As this was my first trip solo into Europe, I picked a very boring route, sticking to the main motorways mostly E40, E42, then the 4 and the 61 once I got into Germany. Yes I know I missed a lot of fun roads and stunning scenery - but I wanted to get there and back, building my confidence. I was doing a steady 70-75 MPH, not filtering unless traffic was stationary and being ultra cautious with riding on the "wrong" side of the road (by the way, within 10 minutes this felt totally natural).
I had a Ventura pack on the back of the bike (the biggest 40 litre box they do - pig ugly, but effective) and a small 5 litre tank bag. Every packed inside roll top water proof bags, just in case. Nothing on my back. Navigation was done with my phone, using Google maps on a Quadlock mount. This worked very well, only struggled in very bright direct sun to read the screen (will invest in a proper TomTom next time).
Standard of driving was way better then the UK. Autobahns were fine - I just kept out of the fast lane! Hit traffic around Brussells and close to the circuit, but everything kept moving so no problems there.
A tip for people using the Chunnel for the first time... you cannot arrive any earlier than 2 hours before your departure time, and there is nowhere to wait if you. The first thing you have to do when you arrive is book in, and it will charge you another £31 for being too early (does mean you can get an earlier train though). My suggestion is to stop at the Folkestone Services if you are too early and wait there. It's close enough to the crossing that there shouldn't be any delays - trying to get through the M25 was a nightmare - even at 6.30 AM it was rammed, so very difficult to plan arrivals effectively.
I think that covers everything, let me know if you need anything else
Oh - the way back was just the reverse of getting there - including the stop in Aalter before getting to the Chunnel.