Found OEM direct replacement new units retailing from about $50 - $200 USD. $50ish are Chinese made on ebay/ $200ish made by Beck Arnley on CARid and Summit Racing. There is always the chance the parts are all coming from the same manufacturing plant and are just jammed in different boxes (happens all the time). For $50 you don't have a lot to lose by trying one out -

https://www.carid.com/1994-mitsubish...-flow-sensors/

https://www.summitracing.com/search/...pe/maf-sensors

https://www.ebay.com/itm/MASS-AIR-FL...e%3AMitsubishi

If someone has some insight to the MAF situation they'll chime in one thins one. Hope the links are helpful.