Too wide for IDEAL plowing with a 12" plow. Your right rear tire is probably only 2" to 3" below grade in the furrow. The staggered/offset lower link pins on the plow are spaced to level the plow when your right tire is 6" below grade. However, as you have a one bottom plow, you should do "all right".
You can groove dirt, however, it is unlikely that you will get sod to flip in a picture perfect manner.
You situation with your plow/tires is the same as the OP in the thread in Post #5, except you have a single bottom plow.
If you buy another plow, get one with 14" width bottoms. You can pull a good condition 2 X 14" Category I plow in moist clay, after vegetation has been bush hogged very short, WITHOUT filling ag tires. Trust me.
I would spend 25 engine hours fooling with your existing 12" plow, learning, before considering a two bottom plow, which is more critical to adjust.
Plow maintenance: Do not let your moldboards and ground contact parts rust. Coat with marine/water-resistant grease between uses, or spray on a thin coat of Rustoleum. I use Rustoleum in high humidity, salt air, Florida. Cover your plow with a cotton-canvas tarp, NOT an impermeable plastic tarp.
If you had your city and state in your T-B-N profile another reader might know where a 2 X 14" plow is laying in the weeds near you and contact you with the information. It happens.