Several of the great Devs have migrated from XDA to Alldroid.org and they are already hard at work creating a custom recovery.img for the Droid. Follow their progress here:
AllDroid.org - View topic - Boot and Recovery images
(Just be sure not to post any "Off-Topics" there. I think cluttered forums are one of the things that drove them away from XDA)
I could imagine that you could make it an "update" and and name it update.zip and put it on the sdcard manually and just "update" it through the recovery console. Or is a ROM wipe a little more... heavy duty? For lack of a better phrasing.