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I bought the upsized parallel flow condenser from Klima. It comes with a new hose from the condenser to the drier, as well as a short extension to use on the input side of the condenser. It retains the original line from under the turbo to the condenser, but since mine's in bad shape I ordered a new one of those. It comes with custom mounting hardware that should require no modifications to the car.
The normal kit is 16x20, I opted for the oversized 16x24 condenser, which cost about 300$. I'd rather future proof the system for the minimal additional charge of the larger kit.
Since I spend a lot of time in stop & go traffic, I might upgrade my aux fan later to try to improve cooling at idle.
I've decided to retain the R4 compressor I already bought and installed, as well as most of the original hoses since they appear to be in fairly good condition. This saves me a substantial amount of money, and a ton of work. I had previously flushed the system, installed a new drier, txv, and compressor, and added oil per the FSM, but found that it wouldn't hold vacuum - much less pressure, presumably due to one very degraded hose and corrosion on the condenser's hose connections. Hopefully it will hold vacuum after replacing those parts, and I'm still trying to find a way to pressure test the system with nitrogen without spending an arm and a leg. If not, I'll be using UV dye and checking for leaks periodically while I'm filling the system.
My kit shipped out much earlier than anticipated, so I should have it later this week and will hopefully have it installed this weekend. I'll try to document the process, although it seems fairly straight forward from the instructions I received.
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