Andy, I know the frustration well.
The most important thing is getting the Air Box a far back as it will go. I recently took the Carbs of my RD (after trying everything possible to avoid having to do so) and found a slight rearrangement of the GROUND cable and alternator cable threading mean’t I could get the airbox back right up against the Battery Box Frame.
Secure the Airbox back with the bolt on the frame above the airbox of course.
Then after juggling the carbs into place from underneath put the engine spigots in first and then the carb end spigots don’t foul too much on the rubbers…
removal obviously in reverse.
The main thing I found is… keep very very patient with it! Then write down how you did it so you remember next time. (HOpe I remembered this correctly cus I forgot that last bit:o )
Someone might have a good tip about the Throttle Cables too… particularly the “throttle on” – thats B%$#!rd that raised the blood pressure for me.:mad: