Found '86 300E 5-speed being parted out... Ease of tranny swap?

[aNtHrAx323]

I finally managed to find a guy parting out a 1986 300E 5-speed that he had picked up to restore, but ended up giving up on it and is looking to sell it... Or pieces of it. I'm torn between buying the whole car and having at it and an eBay field day, or just requesting the transmission and pedal assembly... Anyway, my question boils down to this: how easy is it to install the 5-speed in my 1988 300E? Do the wiring harnesses hook up with no problems, or will modifications be necessary? I know I'll be looking at a bit of firewall modification to run the necessary clutch hydraulics, but aside from that, what should I expect? Please let me know your thoughts, because I'm hell-bent on having a 5-speed in this car. The suspension needs a rebuild, so I'm going to be going the Sportline way at that point, along with 17" AMG 5-spokes (depending on finances), and I think this car is finally getting to the point where I won't ever be able to sell it . Any input would be appreciated.