Hello geeks...
I have been travelling for a couple of weeks... I stopped by a friend's audio store (Speaker Warehouse - great place to visit if you are ever in San Juan) in PR - he is a high-end audio dealer but also a closet vintage audio geek (he is looking for a pair of JBL 4311 monitors in case any one knows a source).
He showed me a Marantz 6300 he had recently restored and modded and thought you would enjoy seeing it. He replaced all the internal cable, etc. But he also did a very cool mod to the base using a router to add horizontal grooves tinted a darker shade - looks very very nice, IMO - better than brand new: