Well, I finally got hold of some nice 28" wheels for the older bike
The rear one has a 3-speed (I guess AW) sturmey archer hub, and the front a dynohub, which is a nice bonus over the previous (dead!) wheels. After a good scrub and a spot of paint they're looking pretty good, though they still need truing up. Can't get the accompanying lamp to work yet, but looks like this is a problem with the lamp connections rather than the hub itself.
I had more fun and games with cotter pins this weekend. The chainring was quite loose on the axle, and needed a shim... it was rather tricky getting the correct thickness so that the crank would be tight, but the cotter pin would still fit. Once again the vice stepped up to the rescue and it's now "customised" to size with a file.
Now that I've set the seat to roughly the right height, the frame feels enormous! I can only just stand over the frame, and have to sort of bounce up onto the saddle. Don't know if this was a giant's bike or if that's just how they made them back in the day.
Next challenge will be setting up the rod brakes. The sleeves are currently frozen onto the connecting rods (and hence unadjustable) so I'll either have to see if they work OK in the current position or come up with an ingenious fix (i.e. wrench them apart as hard as I can!).
Now I also need to get hold of a shifter for the SA hub - want to try and find a nice top tube mounted quadrant shifter if possible. I never thought these two bikes would turn into such a big project as they have done! Must be a record for the slowest restoration ever (I did up a 70s racer a little while ago and was amazed how simple, quick, and easy everything was), but I *am* looking forward to that first test ride!