gm ac compressor to sanden swap?

[primrrd]

I have another rebuilt crapped out pancake style compressor... maybe its an a-4.. cant remember) on my 81 chev.
Its a 305 with factory power steering and ac on the left side of the engine.
only other accessory is the alternator.
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question:
Has anyone swapped the gm compressor for a sanden unit?
(brand new 175.00 or so everywhere and last forever as opposed to the yearly replacement of my other type!)
What has worked for everyone?
I'm not interested in a march pulley system or anything. Fine with keeping the v belt, too. I know i would have to modify the hoses... will probably try to crimp new ends on the existing (new) manifold hose and keep everything else gm... (drier, orifice,etc)