I don´t plan on ever making a M20 one as it doesn´t really update the system enough, you still need a variable TPS, sequential injection and so on.
I´m just about to make the order for connectors, so mid year this should be ready for sale.
I don´t see a reason to use a MAF or AFM with VEMS, it´s just lowering the ecu´s ability to measure accurately and to any level.