I sell a custom machined chromoly hub for Mazdas 86-93, see my website
http://www.nolimitscustoms.com, but pay no attention to the pricing I have dropped the pricing, call me for prices 604-454-8919
They are all drilled to 5x4.5" and 5x4.75" bolt on, no messing around, if you can do a front brake job you can install these hubs no problem.