Boys Tuxedos Ring Bearer Outfits

Hi ladies, I need help finding tuxedos for my little nephews who will be my rind bearers, I'm struggling to find something on Amazon, and I don't want to break the bank. I already ordered their vests and bowties in the purple color for my wedding theme, but I am looking for pants/possibly a suit top or tuxedo top in grey that they can wear. I don't need a 5-piece suit which is a lot of what I see being advertised. Any advice on where I can look? Thanks!