Hi from BCN, Spain.
We have a nice situation here, the state respects the privacy of the individual, so what you do in your own house is ultimately your business, as long as you aren't making money from it. So here extracting DMT is 'safe'. I also grow mushrooms, and am a long term member of 'the shroomery'.
I'm going to use Vovins tek, and have all of the equipment apart from the pump for the Buchner filter, which I hope to get this week.
Look forward to meeting you all and sharing info.