I'd suggest exploring the led conversion too.
Old school dynamo lighting was notorious for blowing bulbs.
Even low powered dynamos will power modern led bulbs.
Before I went with a modern dyno-hub, I utilised a vintage Sturmey Archer GH-6 dynohub and Edelux headlight.
Night and day performance compared to old school "globe" lighting and no blowing the bulbs.
www.sturmey-archerheritage.com/index.php?page=history-detail&id=62
Lots of info on the web
Google should help,,,,,, Yip I just had a squiz and there appears to be heaps like
http://www.bertinclassiccycles.wordp...n-bike-lights/
Good luck