Lone Star Flight Museum have or had one under airworthy restoration back to bomber configuration, although I seem to recall it suffered damage in the hurricane a couple of years back.

The one Oxcart mentions is ‘Tanker 121’, which was airworthy for a short time late last summer. It flew to Casa Grande, Arizona, back in October and she was still resting there as of a month ago.

http://www.air-and-space.com/20101106%20Casa%20Grande/DSC_1170%20P4Y-2%20N2871G%20121%20right%20front%20l.jpg