Plow

A) your tractor doesn't weigh enough to get good traction when pulling a plow through the ground

B) you've probably got turf tires on it instead of agricultural (ag) tires, and when pulling heavy implements the tires matter a lot.

However, if you're dead set on getting the plow there are options - like, you buy the plow (if it's not in 100% working condition $100 would be a generous offer, I think) and take off the rear-most bottom - I expect it should just unbolt. Then you'd have a one-bottom 12 that your tractor might be able to handle. You might want to think about having some liquid weight (calcium or water/antifreeze mix) added to your tires to improve traction, and perhaps putting ag tires on it. Or you could just buy another tractor. Something like a Ford 8N should be able to pull both bottoms through previously-broken soil, or one bottom through virgin dirt. I hope this helps.

Probably run out of traction with a compact be4 running out of hp.

Probably not enough hp or traction for most soils with a 2-16 or bigger.

--->Paul