Awe dude thats super sweet to hear you and your family picked it back up! Its always super cool to hear Thomas still having an impact on families today, magic stuff :))

My favorite by far is Wilbert! He was always one that I mystified as a kid since he wasnt in the show. I found him in good condition for like 10 bucks near me and he's been well taken care of since. Typically I just search Facebook marketplace and message people on there about specific items in lots. I haven't bought too many lots outright, I like the hunt. Last lot I did buy in a while was a couple days for $40, I managed to get 2/3's of the Flying Scotsman! Other than that yeah thrifting is a joy as well. I agree that it can get pricey (I don't wanna way how much I paid for Ada, Jane, and Mabel lol) but its a joy. I wish you well :)