LadyGascoyne
Still Fig-uring it out...
I have been having lessons on one of their horses.
Then perhaps you can keep doing that until your horse is ready to ride?
Give him some time to settle, do a lot of groundwork, take the pressure off yourself.
In my experience, the kind of horse you're looking for - RDA / bombproof, mother - daughter share types - are made through hard work not something you can buy off-the-shelf no matter how good the horse is in its previous home. Every horse that I have had in that category has been so through a combination of training, management, environment, and the relationship they build with you.
Take my Mimosa, for example. She's teaching my beginner sister-in-law to ride, she will let children climb all over her, and we hack out on the buckle to the pub, I can jump off and have a drink and she will stand like a lamb. But when I briefly put her over at a nearby livery yard, she was so ghastly I had to bring her home in disgrace and buy the yard owner flowers as an apology.