Welcome to the forum. I believe Czech Model makes a 1/48 T-34 but I don't know about the quality or accuracy of the kit. Your options are wide open on the Crusader. It's available from several manufacturers in several scales.
In 1/48 your two front runners would be the Monogram and Hasegawa. I haven't built the Monogram option since I was around 12 so I can't recall if it has the raised wing option. I do know the Hasegawa kit allows you to build it with a raised wing and multiple after market companies provide a wingfold option. The Hasegawa is probably the nicer of the two kits, but it's more expensive.
In 1/72 I've read good things about the Academy F-8. Not sure what features it has, but it could be worth a look if braille scale is your thing.
If you have the shelf space Trumpeter makes a huge 1/32 F-8. For the price they're asking I would assume it has folding wings, but it's too big for me so I can't speak to the quality of the kit. That's what Google is for!
There is a member on the forum, F8Fanatic, I believe, that is our resident Crusader expert.