Hopefully your tech is not charging you more than an hour to do your valve inspection. You can save some money reducing the labor time by removing the plastic yourself. Make sure to document where each bolt came from because there are four different sizes holding on the plastic. Just go slow so you don't break anything and follow the youtube video instructions if you don't have a service manual. If the valves have to be adjusted, than you are looking closer to 3 hours especially if the right side needs adjustment. This is due to the difficulty in getting to the cam tensioner screw on that side. Be sure your mechanic documents the clearances on the work order for you so you have the information. It also keeps the mechanic honest when you ask for documentation. The nice thing about the ST1300 is you can drive the bike without any of the plastic. I drove my bike this way for a week after completing a major service, while I put myself through some extreme slow speed and high speed cornering drills. If I drop it in this condition, I don't have to buy any new plastic. I did put the seat on it though
I also attached a valve inspection worksheet for you to record your measurements.