I'd be looking at used deals on CL. I'm not sure if demand is up on used tires or not, but all things considered, I'd be tempted to go as cheap as possible while saving up for a decent set of tires. All the used cars that I bought came with used tires... not sure if some of the corner shops have some good deals, if they are low on business.
I'm not against cheapie Chinese tires as much as I'm dubious that they offer true budget performance--no cost savings if they cost half as much but wear out 3 times faster, or get sketchy in the rain sooner. Only if they will age out. I get it the premise of not having money, but "budget" can mean either low up front cost or low lifetime cost. Anyhow. It's an older vehicle and we're not given much info. I'd probably get the cheapest from a tire shop that I'd want to return to for any sort of warranty work, road hazard or the like, Walmart might be a good place since they're all over the place. I was tempted to run Douglass a couple of times but always have had the coin to go better--but IIRC their main complaint was fast wear, and that might be acceptable here. No end to the choices, which is why it might be easier to pick a tire shop instead, see what cheap options they have, and then pick the one that hits the sweet spot (be it price, longevity, wet traction, whatever).