Egads man!  That's getting huge already.  Just say 'uncle' and admit to Danamo that he won!!!!   Oops, he had to drop out.  Where are you getting  your dimensions from?  Maybe I should be checking these figures if Danamo isn't going to do it.  Can we trust you?

All teasing aside, I'm impressed by your pipes.  Are you using booleans and then 'C' to create single objects or are all these forms still negative and positive booleans?