Patches are not reliable, you should carry spare front and rear tubes and get the punctured one vulcanised, see here for picture.

July is likely to be hot. I'm currently on my way back to the UK having spent the last three weeks in Morocco and it was 35c (and felt like 40c with the sun) on a couple of days. Weather in Morocco is seriously variable, one October in Foum Zguid I experienced 43c, the following October it was 6c in Midelt.

Nevertheless, with 26 litres between you maybe you should take one of these as well.

Seriously though, the route planned isn't remote, there's plenty of places between Midelt to Imilchil and Imilchil to Msemrir buy nicely chilled water, coke, fanta and so forth. The longest stretch is Zagora to Foum Zguid but there's habitations along the route and I was invited in for lunch of melloui and hot sweet tea.

Obviously staying hydrated is vital, you should start each day with several cups of sweet tea and some orange juice then down half a litre of water before you set off. Keep drinking and monitor your consumption. Hot sweet mint tea and something salty (peanuts) will keep the minerals in balance.

Your problems come if you break down, so before undertaking a more remote section make sure you have a long drink, refill your camelback (chuck out of the old water and refill with lovely cold stuff) and possibly stuff a couple more 1.5-litre bottles in your gear (making 6 litres in all).

It's the heat of the sun as much as anything which is dangerous, so think through making shade whilst you repair the bike. Also a big floppy hat. A buff is extremely useful as it can be soaked in water. Sometimes it's so hot you have to ride with the visor down as otherwise it's like riding into a hair drier.

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"For sheer delight there is nothing like altitude; it gives one the thrill of adventure
and enlarges the world in which you live," Irving Mather (1892-1966)