HANGING A 60K BTU OUTDOOR CONDENSER

They make brackets just for that:

They do make brackets/platform that mount to exterior walls that allow the units to be hung. We have several newer construction houses (15 years old) maybe 75 houses in that development) and all of them have the condensers hung off of the walls. They seem to be durable as they are still supporting those units.
https://www.ecomfort.com/Rectorseal-WBB500/p31106.html?utm_source=bing&utm_medium=cpc&utm_campaign=bingsc+bestsuperlow+WBB500&msclkid=00f0f07be0f51f9eabb3abacb85da75b&utm_term=4583176784112154&utm_content=*BSC - Mounting Accessories

Have you looked at the weight of the unit and capacity of the wall bracket?

^ have you considered noise and vibration that will be transmitted through the wall?

Here are two stands that will hold the load you have:

https://www.ecomfort.com/Rectorseal-CWGL/p31128.html

https://www.acwholesalers.com/Diversitech-QSMS2401/p82041.html

I have the 18" version of the Diversitech stand- it's solid and no noise or vibration from the condenser into the house.