If your good enough to do the cheescake thing and apply the leaked root, then following the instructions on this link to get back to OTA should not be a problem.
Get to 5.5.893 OTA from ANY LEAK - RootzWiki
Many people have posted success using this method. I have not done this yet but plan to. I am downloading the files and making sure I understand every step before I start.
I am thrilled to see a path from 5.7.893 back to OTA.
It worked for me. Also upgraded to 901 with root. running Eclipse rom now on 901 and working awesome.