I got the two OEM hoses from Rock Auto. I'm still waiting on the Mishimoto MMOCC-RB Black Oil Catch Can.
According to Sekred, the ID of the EPDM hoses is 17.5mm (.69"), which is close to 3/4" ID. It looks like the Mishimoto hose fittings are 3/8" NPT, so two Brass Barbed Hose Fittings, Adapter for 3/4" Hose ID x 1/2" NPTF Male Pipe (5346K68 - $3.80 each) should fit the hose. Two Medium-Pressure Brass Threaded Pipe Fitting, 1/2 Female x 3/8 Male Pipe Size, Adapters (50785K29 - $4.23 each) from McMaster Carr should fit the oil catch can and adapt the larger barbed fittings. I really don't want to shove a hose inside of another hose to get a fit between the OEM hose and the barb fitting.
Bryce racing sells a set of quick release fasteners on Amazon for about $16.99. Or two slots could be cut in the mounting location and two clips inserted for a Dzus fasterer setup, about $33.00.
Once I get the Mishimoto can, I can finish engineering out the quick release fitting to attach the can bracket to the mounting point. I'm thinking of putting the catch can in the left corner, where D1JL put his. I'll probably attach the OEM hoses to the catch can barbs with stainless steel oetiker clamps.