Why are you going to this effort to make MeAm ?
Surely the Hexamine route is best ? Read Eleusis/Zwitterions documents on the subject, particularly Eleusis' Methylamine FAQ 2.7, part 6/7 (Hydrolysis of Hexamine). Skip steps (a) and (b) because you don't need to make hexamine, you can go and buy some hexamine tablets from your local outdoor/camping supplier ("camping fuel tablets" or "hexamine cubes") and jump straight onto the hydrolysis by adding Hcl (step c).