MPJE Mn?

Oh, dear..

It is really hard to find any info on MPJE MINNESOTA!
Anybody know what materials I should buy and where to buy? I am planning subscribe RXprep MPJE for federal law so should it be enough to cover federal part?

How long should you study for MPJE? Acually I am studying for NAPLEX now but start feeling worried about MPJE too as my manager is waiting for my license..

Thanks for your advice in advance!