Raised and raring to go!!!

... and manure!  Loads of it in all beds except where you'll be growing roots.

some stables have large piles of old rotted manure, you may well be lucky and not have too let it "mature" at all.
failing that, just plant spuds striaght into it, as is.

Before you add anything to the beds, take a strong garden fork and just loosen what is at the bottom first. If it's loose, even though clay, the veg roots will do much better - they can anchor down, get some air and drainage. As for the rest, add whatever you can get hold of: old growbags, manure, compost, shredded leaves, some sand, etc. Trust me, I've been down that clay road too many times.

Frankly, if you're up to it and have a bit of time, try to loosen at least a shovel's depth of the clay and add some of the above to the clay, then add the rest on top. It'll put your soil in better shape for this year and next. If you can't, then at least do the above.