Help identifying what else I need for AC

[spenceman72]

Hey guys, when I purchased my Blazer the dealer told me the only thing I'd need to get the AC working was a compressor..the PO apparently removed it for some reason. I've consulted my shop manual and from looking at the pictures of the complete Four Seasons AC system it does appear the the compressor is all I'm missing. I'm hoping this is the case and that all the intact parts are in good working order!
Thanks in advance!