But zercoin is not zerocash - zerocoin dev team have abandoned zerocoin project to create zerocash...

In general where i see zerocoin protocol and and someone will add it that cause red light i just smell scam from distance (XLB - zerocoin ext ) ...
2nd thing is that zerocoin and it implementation is build for POW coin at least ANC is close to run it but they work on it hmm 6 months...
How ever is all most year and Megacoin didn't implemented it so far...
https://bitcointalk.org/index.php?topic=240861.msg3095061#msg3095061 year ago and big buzz about zerocoin... so far nothing...

And you want connect Zerocoin + POS that even harder task...
for me today it looks like XLB2.0 to be honest.

Good luck.