Just had these done at Bradd and Hall in Elkart about a week ago. Replaced the curtain in the front with the Charcoal day screen and the tan night screen (motorized). Also replaced the pleated night shades (we didn't have day/night in our 2006 340TS). They used the AMS (Auto Motion Shade) brand
The motorized front shades was right at $650 plus installation. They also put a wood valence stained to match the rest of our woodwork in the front as well to help hide the rollers and installed the up/down buttons on the dash.
We also did the drivers and passenger, dinette and couch windows also (they were about $150 - $200 each). There is a significant difference in how well they block heat from getting in with both down during the day.
Total bill was $1800 for all installed, but they can be done yourself saving approx. $600.
Hope this helps.