A/C Hose Routing?

You may have to go back to the junk yard. You will need the A/c drive pulley on the back side of the crank damper.
Any good A/C supply house should have the drier. You can contact Nostalgic Air Parts.
http://www.nostalgicairparts.com/
Tell them I (Charrlie Schmid) referred you. They are the company that had my mount fabricated for me.
PS: That pressure switch is a dual switch. Low pressure cutout in case you lose charge or outside temp too low, and high pressure cutout, in case the condensor fan fails or the air flow is restricted. I also recommend a "Parrallel flow" condensor (like is shown in the pictures).

PPS: NAP part numbers. Drier 2-0026, switch 4086, wireing pigtail 1030