Trans Catalina Trail Itinerary Advice

Hey there! My friend and I are doing the Trans Catalina Island trail in November. We are thinking about the following itinerary. Any advice would be greatly appreciated. My one concern is the first 18 mile hike. Not sure if that will be overkill.

Day 1: Arrive in Avalon. Hang out. Hike up 2 miles and stay at Hermts Clutch. Day 2: Wake up and hike to Little Harbors (18 Miles) Day 3: Wake up and hike to Parsons Landing (12ish miles) Day 4: Wake up and hike to 2 Harbors and catch a ride back to Avalon.

Any thoughts? Thanks so much for the help!