I'm about to get my Weaver I hope sometime this week ordered it last week. So I can let you know how it goes once I get it but I do think there are few others here that do have one as well. I was going to get it last year but things cropped up and I thought maybe a decent old one would surface but that wasn't case, the refurbishment people either didn't get back to me even after a few emails, were nearly as expensive as the Weaver or just wouldn't send to me in Australia and I couldn't get hold of the guy in Harrison, I think someone here said that he wasn't making them anymore. You probably won't have some of these problems if your in the US, but like you I was worried about trying to get parts for one of the old ones anyway so I thought the Weaver would be my best bet in the end.
If your budget can go over what the Weaver costs there are few more options of a new one, I contacted Cambell-Bosworth and they deal with a company in Italy I think, they still makes new ones but the six inch is the same price as the Weaver and I couldn't go any higher than that and I needed an eight inch I think their eight inch was around $2500 USD.
I don't think anyone makes a new 10 inch hand crank though so if your wanting that size motorised is going to be your only option either like Bruce said the Artisan (I may of got one of these but I just don't have the room to store it) or there is a German company that makes a 15 inch but I can't find their website at the moment and I think they were about $3500 USD.
Hope this is of some help
Cheers,
Clair