Looks like that oughta work. I have had regulators fail before, which would be a bummer with the combined unit. Of course, that was using them full time in my cabinet shop.

In my opinion, you don't want an oiler. Just put a few drops of oil in your tools every day. There are certain tools that don't like oil. One of those is a pneumatic squeezer. Also, oil in your air lines means you can't use those lines for spraying primer and paint.

Have Fun!
 
I'll second the idea of NOT using an oiler. They are nothing but a mess for what we are doing. If the application were different, think production line running an impact wrench all day long or something, it would be different.