Really love this so far I like how Luffy is actually training his crewmates and how the mc is gathering more grew then he original. Some ideas for crew members besides the original story’s crew could be maybe Alvida, Mr.2, maybe Mrs. Double finger or miss valentine depending on how big you want the crew. Perona, Porche and Gina from foxy pirates,Khalifa and kaku, Frankfreed the sword, reiju, shirly, olive (impel down), Bonney if you can get her to leave her own crew, one of the dressRosa princesses, baby 5 and money, maybe viola for Sanji, carrot and Wanda, fujitora, desire if you do fillers, and carina and baccarat from movies,etc. that’s a lot of people So it’s be hard to right most of them but thought I should just give some ideas.
Ps: if Luffy screw is bigger and stronger why the two year time skip I heard you mentioning. Don’t get me wrong I love the story so far and If your dead set on it you can just have him use conquers haki at the slave house to knockout all the buyers out so that no word gets out and no admiral comes Then have him meet up with Kuma to strike up a deal and have him send everyone to corrosponding islands were they can get stronger and keep in touch via den den mushi if they have them and then make it a one year time skip instead of two since there stronger and smarter and better equipped so they don’t need that much time and if they go to the new world sooner he can get to take his whole crew to dressRosa after the Cesar arc and take out doflamingo quicker and cleaner before all heading to zoa and taking out jack and heading to wano pending he goes to the sample islands as Luffy with a few detours along the way to differentiate from canon a little. Maybe even solve the vinsmoke thing outside of wholecake arc so he doesn’t piss big mom off.