A shout out to local bike shop, Reg Taylor Cycles. They couldn’t do a full repair and maintenance job on my bicycle today but they were able to rejoin the chain so I can get back to cycle commuting to work next week while they wait for the necessary parts to come in. For free!
Wear on the chain rings indicated that replacing those was worth doing at the same time as putting a new chain on. Meanwhile, though, I should be okay as long as I don’t put too much strain on the chain by staying around the middle gears (and perhaps I’ll try and avoid the steep section of hill where it snapped earlier this week until all is fully restored).