Should I leave my job or stay and see what they have to offer?

So, my current job is offering me a leadership position. They said that I'm getting the promotion and they've been training me to assign work to the other men and to use to computer system to decide which orders we need to fulfill for the week and a lot of other technical stuff that will probably bore you.

They will give me a hefty raise but I will still be hourly. The only issue is that there's another job in a different department that pays $3.50 more an hour than this promotion will pay me. Except I heard it's extremely dangerous and it's a very toxic working environment. Someone who left that department told me that they are pretty harsh on transfers strangely not hard on guys coming from outside of the company. They can't find anyone to do the job. And I would have to wear an outfit similar to a full hazmat suit with mandatory overtime and it's working with dangerous materials.

Is 3.50 worth it? When I get the promotion I'll be paid good but an extra 3.50 sounds pretty good.

I live in upstate NY, USA. It's one of the highest paying jobs that don't require college or experience.

I'm originally from overseas, lived in Canada, and now live in the US. My dream is to buy a house, get married, and have a family here. I really believe in the American dream. But I'm very conflicted.

My bosses treat me very very well. And theyve given me a lot of advancement in the short time I've been there. My supervisor explicitly told me that if I transferred to the other dept he'd be ticked off (jokingly but serious).

Like, I wanna show these guys I'm loyal and hardworking. But I want all the money I can get. The promotion would look good on my resume but the other job I could transfer to pays more just to start as a regular worker.

Idk what to do.