I'd break the it into sub-projects:
Digital transfers
For digital transfers, there are at least a handful of inexpensive, bit-transparent soundcards that satisfy your criteria (1-3, 6, not sure about 5). But I'm curious - why the need to resample from 48k > 44.1k? If you're archiving, you're better off maintaining the quality of the master recording as closely as possible - in this case, stick with 48k. You can always downsample later via software with batch processing.
Analog transfers
You don't want to do the analog to digital conversion with the soundcard if it's IN your computer. The insides of a computer are an inherently nasty environment and will generate noticeable noise during the A>D conversion process. So...either <1> get an external soundcard that satisfies both your digital and analog needs, or <2> get an outboard ADC that will feed the soundcard you get for the Digital Transfers above. Lots of outboard ADCs out there, and if you're not limited to something that's portable, you have literally gobs of options. And for analog transfers, I'd stick with 24-bit, 96 kHz.
Sorry I don't have any specific gear recommendations at this time, but hopefully my comments are useful.