Help finding a SEP IRA Document to stand beside a Cash Balance Plan

I'm trying to find a SEP IRA document for a Client that allows for a SEP IRA to stand behind their Cash Balance Plan. Is anyone aware of a company that provides that? 

We know we CAN NOT use IRS Form 5305-SEP.

Schwab, probably the other big asset houses as well.

Google pulled up some specialty firms as well that mention they specialize in outside the box investments.

Good luck.

Contact ASCENSUS - note the SEP-IRA document will be quite "old" as IRS has not opened up the SEP-IRA program for updating