A/C system replacement

[jeepmjga]

So in my theme of just replacing instead of repairing I am looking to get my A/C working again with the fast approaching Georgia summer temps.  So any advice/help would be appreciated.  I am looking to just replace all my A/C equipment and was starting to make a list.  Obviously I would like to just do r134 instead of r12, the system is already empty of refrigerant but I was looking to replace the compressor, condenser, lines, evaporator, expansion valve, receiver/dryer, and I figure even the heat seems to work fine I might as well replace the heater core while I'm in there.  Am I missing anything on the list?  I am fairly new to working on HVAC stuff but my other question is if I am just replacing everything can I just put in all the new parts and charge the system and thats it?  I was planning on getting a vacuum manifold set as well to refill.  Another question is if I were to order all this stuff from rockauto would it all be ready for r134 already?  I looked in the DIY section and have read the A/C refurb write up but as I said I'm pretty new to HVAC stuff so any help is appreciated!

[75sv1]

I'd look at this thread:

 

Also, look at Limey's Thread.

I'd get a brass/copper heater core. I'd do '97+ parts. I'd proably look around and see what it cost for someone to vaccum your system and put in the refrigerant 134. I think it takes PAG 100. I did my 2000 XJ last year. Also, 'redid my '98 XJ. I did buy a 'rebuilt' AC Compressor off of EBay. Buy the compressor with the clutch pulley already installed. 

[75sv1]

More useful info: