O.K.
One of the biggest "obsticals" we are running into is the Eurobracing on the tank...
It's in the way of the overflows, and will require 3 additional holes to get the C/L and Return in..
Have you seen his "plastic" bracing/trim packages he has....
They would "open up" access to the overflows and eliminate the cost of 3 "holes" and still allow "optimal placement " of overflows
At this point we could do 1 "larger corner" to get 1200 gph rather than 2..eliminate "another hole and bulkhead" cost ...
Althouth it would probably require a center brace for tank strength....(narrow)
As this is a 48" tank...and you will be using Two MHs over it..this is not a bad option and offers a significant savings...
Is there an "additional cost" for the plastic trim/bracing...?
Then subtract 1 overflow 4 "holes" and 1 bulkhead from the price...
Schedual 80 bulkheads are "nice" ....
but "overkill" IMO if you are watching pennies...I run standard (schd 40 ) bulkheads at sizes listed and have had NO problems...
They wil also require "smaller holes" (under 2" for most" ) and will save you money there... Also the cost of these bulkheads is $7.00 and $10.00 respectvely...
Once we (you/I/acrylic51) come up with a "plan" you can live with, we can do the "detailed" drawings...
At this point it would be a waste of time...as we are still in the "pencil sketch" stage....
(I "told you" it would be page 11 before you got your "drawings"...
)
Overflows are made of glass..and running across the back would be a waste of "tank" space...