that may be of help.
First is the BLM info.
Next, the AW page on Slickrock Canyon. Not sure if you will be able to reach it if you're a non-member.
Next, the link for the Bedrock to Gateway section. In my opinion, whoever wrote it may not have paddled that section. There are some hidden rapids along the Paradox Valley Road, specifically Trap Rapid. Rafters call it class 3. Probably it is just a 2 under 1000 cfs. Trap Rapid is one place a kayaker can get to the river from the road.
Here is a link to my solo run of Slickrock Canyon. Nice pictures and some info that might help you on the next sections. Because of the length of the link, you may have to select the whole thing by hand and then paste in the address line.
You should have the Dolores River Guide by Ralph DeVries and Stephen G. Maureer. They tend to over-rate rapids by a step, for safety of rafters, but as I said, they report some rapids along that Paradox Valley road, rapids you (and I) did not see from the road,
I suggest putting in low on the San Miguel and going to Gateway, which can be done in a day. Thirty miles from Bedrock would be too much for enjoyment.
URCHIN Portable Anchor