Baby crib

My son was born 8 weeks early and i never got the chance to get a crib, hes been sleeping in a really cheap rock n play and hes starting to grow out of it. Ever since we brought him home weve had to bring him to hospital after hospital, switching from formula to formula and over time it adds up and we dont have the money to buy a nice crib for my little angel. His daddy is a soldier and is trying to do his best to give him everything and if youre a parent you know that diapers and butt cream and wipes add up every 2 weeks. So please, if you can help in any way that would be amazing. Thank you for your support!