Air Conditioning Help!

[WGJ]

Tranny Nightmare...
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Cost me $3200 to get tranny rebuilt. Apparently in process of removal or install they banged or otherwise wacked AC line, damaging compressor O ring and total loss of freon. AC shop charged me $380 to "fix" it...BUT the condenser fan didn't work and my system has pressures of 29 psi to 290! I was told fan needed to be replaced and that the extra pressure could cause trouble if I used the air when it was in the 90s. Tried the air once (at 73 degrees)...felt like a chipmunk blowing air over a snowcone! Pathetic! My air was ice cold before the tranny rebuild. Now AC techs tell me the high pressure blew a switch in the fluid line, letting all the freon out and that there was no point in fixing the switch until fan also replaced. Their tab to do this...$650! Techs claim switch comes in line and is only available from Subaru.
What do you think and can you direct me to a drawing of the AC system?
I need the parts # for the fluid line and a picture/drawing/schematic. A used fluid line (?) would be terrific.
Thanx,
WGJ