Absolutely I understand. Luckily I live in the suburbs so parking is not a problem but when I do drive to LA I'm very careful of where and how I park.
The way I see it if one gets the Japanese unit it can't be that many more cables. It can't be that hard to figure out. Out of my scope though, I would definitely have someone do it that is versed in automotive wiring.
The main components are:
1) The mirror housing with power folding motors x2 (Japanese or Aussie market option)
2) The mirror inner corner piece x2
3) The dash switch
4) Pig tail
Right now there is a Japanese seller on eBay selling all of this for $399.
Search for "nissan fuga folding mirror"