I tried to keep it simple but I think the most complicated piece I did was that lance on the grail vow... bloody ridiculous things on it
not that it's bad, but with so many boosts it can be quite complicated, as you said. The stat boost isn't so hard to track, he's got the same stats as the King by the end... by the questing vow he has a regular Lord's profile.
Certain items carry over, like the Tress of the Alabaster Dragon... something that gives him character.
I have to look back over it again anyway but I too found him a tad bit... complex. Remembering all his rules would be a pain in the butt, but then he reminds me of the King in this sense who also has a good number of special rules, the only difference is they're more simplistic rules.
If I dock points on one of the versions, though, and he becomes worth less than the version prior to him, I would have to dock the one prior to him as well
it's complicated hahaha!
-Jean-