Which timing light should I buy?

On the -6, it should still work as a non-dialback. Just install a timing tape on the balancer.
I love my old Mac DB lite. Came with tac, and flash lite. THe 1/2 degree resolution, IMO, is overkill, tho. The up/down buttons are kinda slow.Ok, so I dont love it. I just like it a lot.