I have played a lot of TES... a LOT of TES. Back with regular old Oblivion I encountered a problem with game frame rate drop and corrupt and unplayable characters after the save file reached a certain point. Now that was on xbox back in the day and I thought that was just another console problem, but after having that issue happen again in Morroblivion, and knowing and experiencing that issue in Fallout 3, Fallout New Vegas and xbox skyrim as well, i'm wondering if the pc version which is more tolerable towards large save files and will be able to withstand a massive mod such as this with ease. I'm talking about a 500 hour or 1k hour skyrim savefile moving to skywind without hitting the save file size limit when finishing all the quests... what about skyblivion as well?
Anyway the big question is if I will be able to continue my 500 hour skyrim character with skywind and skyblivion without the save file bloating to the point of corruption?
I'm not really all that great with understanding the functions of this game, but that's one reason I'm asking, the other reason is to simply bring awareness of a potential issue.

I don't think you can use
I don't think you can use your Skyrim saves in Skywind and Skyblivion, it wouldn't make sense at all.