A suggestion on style - if you put the dll files into your avisynth plugins folder, they are loaded automatically. You can do a similar thing with functions; so you could create a text file containing LimitedSharpenFaster, save it in the plugins folder with the extension avsi and the function will be available from any script you create.

Simplified, your script then becomes:

MPEG2Source("[2]_VTS_03_1.m2v.pulldown.d2v")
Crop(0,102,0,-104,align=true)
EEDI2().TurnRight().EEDI2().TurnLeft()
LimitedSharpenFaster(dest_x=720, dest_y=360)
addborders(0,60,0,60)

... which is much easier to read.

(My quick calc found dest_y should be 365.3, say 366, so the addborders would be 57 each. The difference is probably not worth worrying about.)

"AAA" I believe was a function called Anime Anti Aliasing, now replaced by its author with a function called "SAA" (Simple Anti Aliasing). (Doom9 Thread). I haven't really looked into this myself yet so I'm still a bit fuzzy on specifics.