Hey Kamisan, are you still able to run Kint3tx after upgrading to .901? If so, could I run Titanium Backup before I go back to stock to upgrade, then after I do the whole shin dig, reflash Kin3tx and then restore with Titanium?
Be careful what you restore with Tibu- So to answer your question sorta~ more detail- I would not restore any blur data, not any email etc- SMS sure, games sure, notepad office sure- do small batch restores do not try to lump it into one long restore. Personally I use AppExtractor, astro app restore and tibu,, If you restore the wrong thing youll know, it wont sync with facebook or will fail some odd authentication.
What I did was this-
P3 upgrade to 5.5.893 from 5.7.893 leak (did full reset)
For3v3r root (had to use p3s one click to get initial root, did not work first go round)
booted- waited, verified root was there-
rebooted into stock recovery and ran the 901 update
rebooted, checked root it was there.

happy day
downloaded the modified kin3tx install files (some few files had to be 901 versions or you loop) used bionic bootstrapper to install
followed standard install wipe data, cache, format system, advanced wipe dalvik, install reboot
check root- manually apply the forever root method (its rooted but not forever anymore)
then installed the blurr addon (though I use launcher pro paid version i still like the blurr stuff in gallery)
rebooted then installed masturmynds hon3sc3am and so far its golden. GPS rocks- data holding, no loop or reboots.
I even installed jrummys android overclock and underclock with profiles (use on demand not mothotplug) battery holds well with it all.
Restore wise- I used astro and it installed most apps that had not special data, appextractor (need to have u a backup first) and used that to restore sms, bluetooth, bookmarks (still not logins for facebook etc) then used tibu for games and some apps that are not market available. Again the tibu done in batches not one lump. This worked for me- and worked well. .