Ok my mistakes and successes:
Mistake:
On a double boiler I dried MHRB and sodium carbonate. WRONG, I got a lots of wax, which I didn't get in my first extraction,,which I dried on radiator on very low,heat. This mistake made me repeat the steps of cleaning up,,which overall made it longer, and I am sure effected my yield.
Other steps is ok to evap some on double boiler and finish up on on room temperature.
I cleaned by mistake the final DMT with white spirit, and placed my report
here.
I started with 11,400 mg of MHRB and ended up with 1g of pure DMT. Fantastic, I think I would have even a bit more have I not had the wax problem.