I've been restoring a 1997 Ford Club Wagon E350 that I picked up recently and fell in love with. I've been on a few road trips in it and am gearing up for another next week and want to take a second stab at refurbishing the A/C system this weekend before I go next week. I'll be traveling in the deserts of western OK, TX, and NM in August so I expect ambient temperature to be at least 100F. I already replaced the blower, blower switch, and resistor after the old switch melted BAD and I could tell the whole circuit needed to be replaced. It helped some, and solved the electrical heat issue, but the A/C still isn't cooling well enough to cut it. I checked manifold pressures and they were around 70/210psi at 80F ambient so I'm pretty sure there's an issue somewhere in the system. I suspect it's a bad orifice tube or expansion valve, and I plan to take it to a shop to have it discharged and I will replace both along with the accumulator and clutch switch. I also plan to flush out as many components and hoses as I can, as well as removing both the front and rear evaporators and the condenser to make sure they're nice and shiny inside and out. I am wondering, should I just go ahead and fork over the extra few hundred bucks for a new compressor and new coils instead of cleaning and reusing the old ones? Since I need to have it professionally discharged if I ever need to dig back into it and I plan to keep my van for the foreseeable future, it makes me wonder if it's worth replacing them preemptively. That said, I don't want to replace parts for no reason. Opinions?