Hi to people who sees this. I'm Xonos Darkgrate or otherwise "XD". This a helpful guide to those who don't know what to do with the lunchables at the beach or the orange fuzzy dice found on the L. To find the Shepherd's Watch suit,(the red or green suit on display), first go to Engine Bay. There you will find a red lunchbox with lunchables in it. Give these lunchables to Georgia and she'll give you some scraps. Give these scraps to Lukas and he gives you a broken butterfly clockwork thing. Give this item to Irving to fix, then give the fixed version to Selina. She will then give you an key that opens the chest on Smugglers Cove. This requires fighting Baron von Sizzlepot and I recommend asking someone for help.
In order to collect the Restful Tower suit,(the blue one on display), first collect the orange fuzzy dice on the Flying L. It is found below deck, close to Rose's toolbox. Give these fuzzy dice to Edmund and he'll give you a stack of papers. Put this stack of paper in Lukas's compressor and out comes a book. Give this book to Lily and she'll give a beat-up bobble head of Larry. Fill this bobble head with steam and give it to Larry who'll give you a a flying chair.
Offer this chair to Selina and she'll give you a signed Edmund poster. Give this poster to Georgia and she gives you Julian's key. Open his chest and you'll find Edmund's key. Take this key to the Isle Caverns and if you look hard enough you will find a blocked off passage behind a Mega Drill. Open the passage with dynamite and go inside. At the bottom of the hidden area. You'll find Edmund's chest, inside is the Restful Tower suit.
I did this all a long time ago so maybe I gave a wrong fact somewhere. Please notify me if I did. Feel free to ask questions as well.