Onan engine dimensions

Does anyone know the overall dimensions of the Onan B48M-GA018 engine? I'm trying to find the centre of mass to do some calculations for other engines.

BTW I found the Onan service manual.

Would have attached it but this board doesn't :

1) accept files larger than 500kB
2) accept PDF files (WTF???)

I can email it to you if you leave a message.

I managed to get the dimensions from the Q-List.

16.25" firewall to prop flange
19" width for performer heads
15.5" bottom sump to top of carbs

Rob