This wheel is off the back door with 1/2" offset

This wheel is off the back door and has a 1/2" offset.
Thank you!

What offset wheel should I use for the front door?

Great, if you can find out if the two offsets will work without the doors rubbing together, that would be great.
I would think the back set should be at least a 1/2" offset to work with a 1/8" offset on the front door. Or the front a 1/16" offset.
Let me know what you find out.
Thank you very much for your help,

(23-025 was suggested.) Sorry, I forgot to ask if the wheels are flat or tapered? They need to be tapered. They look like they are tapered in the photo you sent me.