Hi, basically there are 2 models (essentially 1 as the second one is updated looks and features of the first one) of ours that meet your budget and suitable up to 25kg. They are the Cammino and Cammino Plus by Meinkind. You can check it out at https://www.lilsanctuary.com/products/Cammino and https://www.lilsanctuary.com/products/cammino-plus
Do let us know and we can arrange additional discounts for you.