4 plate flute plans and build

[30xs]

I am putting together a plan for a flute build and figured I’d start with posting my ideas here for review to save making a mistake only to find out later something may have had a better, or simpler route that I could have used. I have 36” of 4” L copper as my starting point. I am thinking that should give me enough for a dephlegmater ~10” module with a 4-5” dephleg with 7 3/4” type M tubes. Top and bottom plates will be 1/8”. Through tubes will be about an 1/8” longer on the bottom side, flush on top. That leaves the 26” for column. Planning on doing 4 perf plates, about 180 1/16” holes with 5.5” spacing. Running Emptyglass style 3/4” downcomers, 3/4” above the plates. Leaving me with 4” below the bottom plate to build a J trap and keep it inside my ferrules. Found some 2” trap adapters to use as sight windows and runnng 1/8” borosilicate glass. I’ll probably cut a section out of a copper P trap for the 180 at the top into a shotgun. The shotgun I’m planning either seven 1/2” O.D. ACR tubes, or five 1/2” type M, inside a 2” shell. Crunching the numbers the 5 tube 1/2” has slightly better numbers. I will probably be building it somewhere around the 18-20” cooling length, 22-24” total length. I cut my plates for condenser end plates and baffles using a circle cutter in a drill press. I can remove the bit and get a circle that requires hand rolling across sandpaper to final size. My other option would be to leave the bit and open the center hole to 3/8” after spinning them to final size. The solder in a 1/4” tube in the middle. I know it is a bit on the small side for a condenser, but with 1/16” perf plates and having 5 other tubes is there a reason to not having it there? I liked the idea of it reducing the surface area on top of the condenser plate as well.


Questions:
1. With my tube configuration what would be the ideal dephleg size for a quick response and still be able to hold reflux?
2. What size hose would be the minimum for water supply? I currently use 3/8 O.D. push lock connections and have Legris
flow control valves for that tubing size. Will that suffice, or should I step up to 1/2”?