If you know how to air down you will not need traction boards, a shovel and a compressor is better (IMO). The route above is good, I would add Animas. If you want mountains Laguna Hansen or Parque Nacional Sierra deSan Pedro Martir are great places to camp. Pines and condors will be you company. Highway 1 offers some of the best of Baja, Highway 5 is fast, I would go down on one side and back the other. Pick up Baja Road and Recreation Atlas for Baja Bound, get your Insurance here.
A couple of must do:
Valle de Guadalupe for wine and food. Both world class.
Oysters in San Quintin, drive out to the outer bay. Also there are great restaurants out at the Old Mill. All of them are good. Jardines is also very good. The crab plate at Cilito Lindo is a Baja classic.
Mama Esponsa's has been there before the the road was paved, famous for Lobster burritos and crap soup.
Bahia de Los Angeles, very pretty place.
Guerrero Negro, go see Zihul Martinez at Zihul's knifes, he is a guide arrange a trip to the cave paintings and mission Santa Gertrdis. A truly fantastic day.
Bahia Asuncion and San Roque. Great town stay at Shari Bonny's hotel and campground, eat a Mary's sunset grill for dinner.
San Ignacio, see the mission and get ice cream just off the square, ask anybody where.
Mulege and beach's south, very popular pick any of them. Buenaventura is alway very good, a bit farther south.
Aqua Verde is a great beach. Very remote.
San Evaristo south to LaPaz is a great drive and should be done. Leave from Ciudad Constitucion.
On 5, stop and meet Coco, he is a Baja icon, buy a beer from him, sign his book ask about his history.
Check you PM. I love my remote beaches and will not post them for everybody. I have lost to many places to crowds over the 40 years.