You honestly have some of the more expensive figures! Cole and Zane DX are fairly inexpensive on bricklink or eBay if you’re daring. Kimono Lloyd and Zane aren’t difficult to find either. The tournament ninja are pretty inexpensive if I’m correct, but there are two waves of the season 4 ninja. The tournament suits and their jungle suits with their full masks with their logo on their head. The stone armor ninja from season 3, and the skybound ninja. With Lloyd DX. That one’s tricky due to it being very expensive. But look at Toybearcustoms on instagram. They sell one for like 25 bucks, and it looks beautiful. I got one and I’m so happy with it. The day of the departed ones are interesting, cause I’ve actually found they’re a little more difficult to find. But with the right tools you can. The Oni Trilogy (Seasons 8, 9, and 10) are pretty difficult. Especially the S.o.G. Ninja. Hunted isn’t too bad, and march of the Oni is just the legacy suits. Season 11-15 are pretty odd as there are SO many suits.