>>1199752It wouldn't be too difficult, depending on what you have on hand, how large of a plow you need, and what type of soil you have. New unbroken sod in dry clay soil would be the worst and require a smithy-level construct. For an existing garden or raised bed with good soil that is relatively lose would only require you to bolt a blade to a wooden construct. I've done the latter for hand tools for my raised beds. Whenever I'm at a thrift shop or antique store I keep on the look out for broken tools like shovel heads and garden tool heads.
Check this one out, not mine though.