In liew of that, just some comments from you folk on your experience with 4x5 Epson scans vs drum scans would be appreciated. I am quite excited about using this "volkswagen" path, which includes paying for an occasional 9600/9800 prints.
There's a brief write-up of flatbed options in View Camera magazine for May/June:
An online follow-up on the V700 is promised soon (for subscribers only).
Basically, this article says current consumer flatbeds are good for prints up to 11"x14".
At this price they may be worthwhile getting to see what potential is in your neg/tranny then sending out for a quality scan. But a 24"x30" is only a 6X enlargement from 4x5 so maybe a good loupe would suffice. It depends on your quality demands, volume and access to someone who can give you good "raw" scans at a reasonable price.