I started my veg patch in what was basically a field, clay/shale with just a few inches of 'soil', rough grass and rushes on top. put 9" boards to make long raised beds, dug a spit out, put manure in spit and forked it over into lower level, turned next pit into it etc, yes it was hard work, but satisfying. Later years a friend came and commented on lovely soil I had, she obviously thought it was like that naturally, I was so surprised I never thought to point out the work I'd done.
Water table is still just below path level in spring, because the beds are like a sump, the original paths holding water back, but it will dry out enough for growing things in summer, providing that moisture further down.
Why not get OH to put the bed sides in for you then try the no dig method, putting well rotted manure / compost on top and planting through that.
Last year my potatoes I planted them shallow, put manure on top and covered with black plastic, cutting crosses for the spuds to come through. was a bit late for a decent crop but reusing the plastic this year, planting through the ready cut crosses.