Before you leave Redmond, I recommend playing the courses at Eagle Crest Resort. The Eagle Crest owners also own Brasada Ranch, which is about 20 minutes east of Eagle Crest and is a fantastically fun golf experience.
As far as the trip from central Oregon to Bandon, I have a “no-brainier, must play” recommendation…..Tokatee Golf Course. It is located about an hour south from Eagle Crest next to the town of Blue River. It is family owned gem that is easy to walk and has tremendous views of our Cascade mountains. It is modestly priced and the beer is real cold!
If you want to get further down the road before playing golf, I would travel to Florence where you can play Sandpines Golf Club. It is right on the ocean, great public play course. And, just up the hill from Sandpines is Ocean Dunes that too is more modest in design but an easy golf course to get around and modestly priced. In any event, you are experience great public play courses along your travels from Bend to Bandon.