If it were mine ......I'd do a SA S3X, Highflange Airlite hub, Alloy Blumels, 1st Generation GB Hinuminium calipers and a Brooks Swallow. If I were younger I'd ride it SS fixed with the same set up.

FWI - Watch the spacing on the new SA's the 5spd and up are wide

swallow is already on order

i'd love to do fixed but I just wouldnt get that much use out of it around here.

I hear you on the spacing. I'd really like to do a sa 5 but i'm not sure how I feel about bending the stays out on this bike. spacing is listed as 110mm but i think its actually 120.

Putting a 120 mm hub into 110 mm dropouts is not really such a big deal.

You have a Sturmey Archer AW hub and rim now, right? Why not just build that up and go with it. If you find a cheap FW you can switch the guts of that into the AW shell any time you like; and you can convert the FW to S5 while you're at it. They all have the same OLD.

What brakes/calipers, stem, handlebar?

Did you try that spindle/crank? If that spindle is too long, I have a couple shorter ones. I don't remember which one I gave you, but I had these to chose from:
29. 34 - 52 - 41, 131 total.
30. 36 - 52 - 44, 133 total.
31. 36 - 52 - 45, 135 total.
32. 31 - 62* - 42, 137 total. It is marked YST 3757.
33. 39 - 52 - 49, 142 total.
You have one of the above; let me know if one of the others will do the job better.

yup, I have the Sa aw Noglider gave me and the rim nlearner gave me. I'm going to build them up and use them, but I'm still thinking about other options as well. I didnt know about the switching of the guts, so that's good to know. I'm not very well versed on the IGH stuff yet.

Didnt have a chance to check the spindle/crank yet. I probably won't until later this week when I'm back in PA, but maybe later.

Thanks for the link to the 5 sp. I didnt even know vintage sa 5 speeds existed.

There are different versions. The one I sent the link to, that's a relatively late one. The most fun, I think, are the early ones (mid 60's), which use two shifters.

That's what I thought until I started riding one. I still feel very limited as to where I'll ride it but my confidence has grown and I'm becoming a stronger and smarter rider. The terrian around my home is simular to yours. On the flats, I can spin 15-18mph but top out down hill around 25. I'm running the s3x so climbs are not as much an issue as descents. My biggist fear is keeping up with group rides. Saturday's LI Century would have been do'able on it, I think I would have felt pretty beaten up but the terrian would not have been a problem.