Hi and welcome!
He's a gorgeous boy! Wow!
What's his name?
Sorry to hear about his accident, i believe the general consensus is that cats, especially pedigree cats, should be allowed only limited/supervised access to the great outdoors. One reason is pedigree cats have no road sense, especially the 'newer' breeds.
The second is, they could so easily be stolen - especially a gorgeous chap like yours.
Sadly, i lost one of my Bengals to the road in September, it was utterly heartbreaking, i really wouldn't want you to go through that.
He had already been allowed free reign (we bought him at 1yr old) so we just continued with how he'd been brought up.
I would say - Build an enclosure if you have the space, or perhaps train them to walk on a leash? (takes practice, but worth a try)
We've hand built an enclosure which leads from our kitchen window (all the training of staying off the worktops straight out the window, literally!
But at least they're safe)
It's about 6-7 ft high, and is l shaped (ish) with enough floor space to put a couple of cat kennels, litter tray, and a decent sized cat tree, plus enclosed space on top of the shed, so they can sun themsleves in the summer.
I've put a piccy on so you can see...we had to build ourselves as it was the best option because we have limited space.
I hope your fella is better soon - best of luck x
This is the cat tree we've bought to go inside.
http://www.catplay-stations.com/cat_troy.htm