Good advice from Patrick, as usual.
Don't under estimate Hwy 16. It's beautiful, but also one twisty sucker that makes you work hard. This is one road you do not want to ride at night....no BS.
Creel and high alttitude areas will be butt-ass cold. I've encountered ice on the dirt short-cut from 16 over to San Juanito even in late Oct. You could get stuck in the Creel area for a few days if some weather rolls in. Ain't no CalTrans there..
The bottom of the canyons should be very comfortable.
There's a jillion motels in Creel and they should be looking for customers during that time of year. Los Pinos is on the main drag, $26ish, hot water, clean, secure parking. Hotel Mary in Batopilas is a fav with some riders. From $7-20, hot water, cleanish, secure parking, small restaurant onsite, across the alley from the major bar, near the small square.
The high elevations of northern Baja could have crappy weather at that time. The cuota (toll road) from TJ to Ensenada offers great scenery. An extra careful watch for cops until you're past the beach towns might save you $25-50. If you haven't been to Baja before, I recommend going south from San Felipe along the Sea of Cortez. It's mostly mild dirt, beautiful Gonzaga Bay (motel, food, fuel), back out to hwy 1, to Bahia de Los Angeles (motel, food, fuel), dirt down towards San Francisquito, back out to Hwy 1...and on. IMHO, Bahia de Conception, near Mulege, is the Crown Jewel of Baja. Mulege just got flooded by Hurricane John.
Loreto is OK, skip Cabo, do La Paz.
has the best Baja maps. Their good paper one should suffice unless you really plan to explore much off road, and then you'd appreciate the book/atlas. www.guiaroji.com.mx
is the road map atlas to have for the mainland.
As your plans become more firm and your date of freedom gets closer, let us know. Whenever I go, the hints, suggestions, hearsay and past experiences from others who have been there have been very valuable. Many times it's just simple things that you'd never read in a guide book.
Mexico has too much, is too cool, is too much fun....