That's looks good!!! Till they reach the top and it's time to lower and lean, are you gonna extend it to lower? Are you feeding them with nutes or just water? I can tell you now, by the time they reach the top the tomatoes probably won't be ripe so plan ahead to keep stringing them.
I'm not ragging on you, just telling you from experience. I'm sure you researched this method and found a few videos about using the roller hooks. You should start training them now to lean in the direction you'll use to lay them down.
One more question. Only 5 plants?