Went with vintage air on my 33 build. The mini unit. Had major under dash space limitations also since I went with dual reverse mounted master cylinders that ate up most of the left side under the dash. Went with vintage air controls also which made it "plug and play" for the most part. Also went with an under dash adjustable fan controller which included a dash LED light. One of the mistakes I initially made ( last pic ) was not going with the low barrier lines, which are considerably smaller than the "regular size" lines, making the install harder than it needed to be. I have since remedied that on the return line ( was a -10 ) and may do some other lines in time.