Update: took a gamble and put it in tonight, its super damn late so I am calling it a night, but as far as externals, everything matched up, and mechanically it was a plug and play. The true test will be when I run it through the gears tomorrow, but I took lots of pics as I did it, I'll share those later when I get time.
Note to anyone else swapping trannies, take the time to replace the input shaft seal (on autos you have to slide the torque converter off first). It's not a bad idea either to do the output shaft seals, the seals around where the axles leave the tranny. It's iffy on the seals I got from Auto Zone, one didn't even have the little shroud for the axle built in even though it was Timken. On the output shaft seals, they wanted to slide in much deeper than the OEM ones and I'm afraid they wont match the axles and I'll have a tranny fluid leak. Again, when I turn the key it will be the moment of truth. The input shaft seal was simple enough though, no concerns on it or the rear main, which I cannot emphasize enough, if you are pulling a tranny or engine, take the damn time and money to do your seals!!!
I was pleased that it was only $35 for the input seal, output seals, and rear main, and I will never have to worry about an oil leak that makes me pull the motor or tranny. I am going to do the oil pan gasket while I'm at it, I've got the exhaust off. Hopefully the gasket isn't shellacked on or whatever like the last accord I did. I also caught that my pan was missing a bolt!!! Either it was that way from the factory, or its been done before, both of which seem unlikely. Fortunately I've stripped down two Civic blocks and I had plenty of spare pan bolts around. I've got oil on the back of my block, up around the oil filter, but I know its not the filter or the valve cover gasket, I replaced it when I did the timing belt a couple of years ago. Anyone ever have an oil pressure sending unit start leaking? That's the only other thing in that vicinity, besides the head gasket *GULP* and I really doubt thats it, runs fine, no smoke, no significant oil loss, just messy back side of the block.