lol just when you think of asking for help on a route, you see one already there

I am also planning to drive down to Goa from Bangalore in september end. I was thinking of going through Chikmagalur (maybe stop there for a day) and then continue the journey.
Looked at the following route :
Blr-Tumkur-Chikmagalur-Udipi-Karwar- Goa
Google maps says 725kms
Can take a halt at Chikmagalur or Udipi.
Wifey and I plan to take a leisurely drive, we plan to leave on 26th of sept and be back in blr by the 2nd or 3rd of Oct.
Advisable? Alternate picturesque routes?