what are your sticking points? i would just copy the ones out there now, pretty simple. Someone did a diy that was very informative but i cant remember where i saw it. Basically just gut the dresser and screw in the drawrs so they look functional. hinge the back with some wood for your access. Mylar the inside and add some small vents
i learned the hard way how good ventilation pays for itself.
got any specific questions?