The MamaBaby would be a great choice for you, with the small baby and also for breastfeeding, at $39, it won't break the bank either.
Just a word on pricing--places like Walmart, that sell things so cheap because they are able to buy and sell in massive quantities and also have things made for pennies in sweatshops, have distorted our view of what things cost when they are made and distributed by workers who are repected and earn a living wage. You have to remember that Maya Wrap and comparable companies are small by business standards, but they still employ hundreds of people who need to live and support their families on the wage they earn. Also, there are shipping costs, customs fees, warehousing expenses, and a lot of other costs that have to be covered. Also, Maya Wrap sets their pricing so that SAHM distributors can earn income from selling their slings as well. It's just not as simple as what the fabric (which in MW's case is hand-loomed by skilled weavers) and rings cost.