Need help for a authentic baltic porter.

Guys thanks for the input and just to be clear, I will be asking more question in the near future.  I have a challenge going on with a very experienced home brewer, basically my mentor, and I told him im going to brew a better baltic porter.  I plan on using wyeast 2124 and harvest this from the Munich Helles Ill do before hand.

I was leaning towards the MO by  Bairds and use a little vienna as the base.  From what you guys suggest use German base malts and use english specialty malts.  I have Best Maltz pils and vienna on hand would this be fine or should I seek out german 2 row?

Best Malz is high-quality German Malt. I think you’re good.

2124 is great too. You still need more then 50% Munich malt. Preferably dark continental Munich about 10L.