Have to agree with workinonit, but in sandy ground. In loamy clay, or heavy black ground a single 14" or 16" is more like it.
I have a 130, and 140 and both do good with the single 14", but all I do with that is play at our tractor clubs plow days. Both are far from new and doubt either one has been overhauled but still run decent. Both will skin right along with any of the 3 single 14's I have. The one with the slatted moldboard has the least resistance.
Also have 2 Super C's w/Fast Hitch and 2 bottom plow. Does great in the garden in 2nd gear but don't know I'd want to plow an established pasture and expect to run in 2nd gear. A 200 and 230 are basically the same tractor with newer style sheet metal. Same C-123 engine in the 140, Super C, 200 & 230. Although the later models may turn a few more RPM's giving it a bit more hp.
While I love my tractors with Fast Hitch, you'd be better finding something with 3 pt. Anymore FH attachments can be pricey depending on where you look. A Farmall H would be a great 2-plow tractor, but just have a u-shaped multiple hole drawbar. Depending on your ground, they'll a pull type 2-14 plow all day long, and fairly easy on fuel. And with guy's getting into plowing with antique/classic tractors they are getting pricey too, let alone finding new moldboards and shares. Just have to know where to shop for them.
Below is a video of me plowing with my 140 near Ashville, Ohio 2 years ago. There are 2 small sections of field consisting of about 5 acres that are part of an approx. 100 acre field split by a house and small lot. I had those sections all by my lonesome as others that normally plow with smaller tractors didn't show up, or guys brought their larger tractors to run with the big dogs. I got that 5 acres plowed by myself in roughly 8 to 9 hours running in 2nd. gear, and had a ball..!!