I actualy ride mine as as I found it lol aside from giving the rims a cleaning. my lights and everything work, theres even battery thing inside the headlamp and many options of lightings. as for taking apart the dynohub i've yet to do so. as I always say. if it aint broken don't mess with it lol. however my other Sports has one with friction and it was overhualed when I got it. so it may be normal.
search out some wingnuts for that bike. as you can see they make the bike even more pretty!, i'm currently looking for a chain case or a chain guard. I have many Raleigh sports parts. I might use a guard from one of those.
Is there a grease port on your front hub? my bike has three of them both hubs and frame at BB has one as well. what size tires was that? I hate the size mine has 26" 1 1/4 luckly I had one in my shed.
oh also the BB question you asked. I actualy sheered my spindle in half on mine lol as for a replacement... I didn't feel like ordering a special one so I took one off a random bike and it works great lol
take more pics of that great bike