I know this is going to sound patronising but it isn't meant to be. If it's only half an acre and you plan on fruit trees, soft fruit bushes and a decent amount of veggies then most of your problem is solved. I know i went OTT with my veggie patches and will downsize them but I alternate between two 1/4 acre patches. One patch grows enough spuds for OH and myself with more tha enough to give away and throw away the duds and small un's etc. I've stil got 2 sacks of onions in the barn as well and there's more tha neough leeks, carrots, parsnips and brassicas about to see us until the early glasshouse salad stuff.. and that's despite trying hard to give lots away.
What it really depends on is what the land i actually like..in terms of depth of soil and soil type. I see no point in making raised beds if the soil has enough depth.
If you stick in a dozen apples, 3 pears, 4 cherries a few nut trees some plums, gages. a medlar, 2 sweet chestnuts, a walnut ... even if it's for future generations.. well you'll just be mowing between them anyway. then there's the soft fruit... a dozen blueberries, half a dozen each sort of currant, some honey berries, raspberries, josterberries, thornless blackberries, gooseberries..... that plot will look quite full soon enough. What mowing with a push petrol job can't keep down can be spot treated later.
And if you can get away with fruit trees on it then you can probably get away with a glasshouse or polytunnel too...