Mixing raspberries with stropharia "mulch", strawberries and anything else

Hello permies,

I've been working hardly (or hardly working sometimes...) on a permaculture design for my garden, in a 8b zone.

One of the things I want, and that seems possible as it's grown in the region, and I already had a few success in the garden, is raspberries.

Here's what I plan so far to do:

- Have some slightly raised beds where I have the raspberries in row
- Have several varieties so that I can both extend the growing season, test their taste, and see where individual variety might perform well and poorly
- Have as many species growing, both for better productivity, stacking functions, and to try and apply permaculture principles, such as how there's no empty space in nature
- Try to grow mushrooms around the raspberries too (King Stropharia, and possibly others such as Oyster Mushrooms

There might be a few things that can be opposite, and so I'm asking for your inputs.

Basically, I'd have slightly raised beds at least single-dug to improve texture and aerate, with composted horse manure, clay-ish soil from the path so that I can actually raise the beds properly. There would be a raspberry plant in there, 45cm away from its siblings. Now, depending on the spot in the garden, I'd either have wood chips around them, inoculated with mycelium, or strawberry plants. A few tansy, calendula, achilea... around as companions.

So, the mushroom would love humidity, but on the top of a raised bed (even if slightly raised), would it still be a good idea ? Would it be better to have the mycelium at the base of the beds, or maybe have most of it around the beds, a bit of it on the bed ?

The variety of raspberries that are going to be there will be Black Jewel, Marastar, Heritage, Fall Gold, Himbo Top and Little Sweet. I plan to plant them as soon as possible, in several days, maybe one or two weeks at most; I want them in the soil for the autumn to try to get something the coming year. The goal is to get enough raspberries per day to cover the whole season, about 125g per day.

What are your thoughts, on that mushroom addition, and possibly on the other things I've talked about ?

Thanks and have a nice day.