You can try typing in your car's info for the maf into
www.car-part.com, and if other models/years will cross to your car, it will tell you what car the crossed part is from.
Or, another way to cross reference it is to shop online at
www.partsamerica.com and once you've found the part, click on the link for "what vehicles this part fits" to see what they think it crosses over to.
Once you've figured out the crosses, pick and pull might come back into play as a source. (But don't get your hopes up, because the rwd might make it rather unique.)
Since the 929 is RWD, have you figured out if the V6 is similar to the one in other cars/trucks? Did Mazda put the same V6 into a B2200 or whatever the number is for their pickup truck? Wasn't the Mazda p/u a twin to the Ranger?