There are no decent 5517's around... They all have the wrong dial, wrong hands, wrong caseback, etc. etc.
Best thing to do is make one. Take one MBW 1680 and add the following:
-5517 dial with proper T marking
-Yao custom MOD sword hands
-T-19 Superdome
-Genuine 5517 bezel insert
-Pre-o ring'd Triplock crown and tube
-Custom engraving on the caseback
-Fit 316 SS bars to the lugs, solder over and polish
-Replace the 2836 with a 2846
Add some wear and patina to the case, polish out and repeat for that aged worn look. Follow up with a nice G10 to finish the look.
Voila. A nice 5517