First PVC rail...... will this work? +k for help

[THUNT836]

So I'm building my first PVC rail, and I'm on a tight budget, so I need to work out most of the details before I actually buy any materials. Here's a schematic I drew up in school today, IT IS NOT TO SCALE. It is also not finalized, and not every drawing is accurate (some are just there for measurements) so please just pay attention to whats in the RED BOXES.
So mainly just need help with the angle of the shotgun, height, etc. Look below for the key info
SPARKNOTES:
-Shotgun single 3 inch PVC (10 feet long) -End of shotgun is 32 inches above ground-Angle of shotgun and flat ground is about 15.5 degrees
-Shotgun connects to flat PVC rail-Flat PVC is double 2 inch PVC (10 feet, side by side)-Flat PVC is roughly 20 inches off ground

 

[THUNT836]

pic is in my profile if it doesnt work

 

[NWPA]

It will be a little bit of a rough drop onto the other pvc. but other than that it should work. Instead of using brackets, I have just used 2x4's diagonally as supports.