Thanks for the comments, other peoples experiences are always good when doing something like this. My views however;
A) It's what 'everyone' on the forums here seemed to go for, which is why it continues to be a popular choice (even though now I'd say buy a walbro, cheaper, i had less problems and it would fit in the standard mount)
B) No idea about that, but it didn't cause me any problems - Unless that had something to do with me going through 2 of these pumps...the walbro never had a problem... so it could be? not sure why I went through 2 Bosch's cause the tank was not contaminated.
C) Like I said in the tutorial, you need to cut it down.
D) Wasn't noisy for me at all. The Bosch was much louder than the Walbro however.
Cheers
Chris