Absolutely! I did it many years ago myself. The fact that you’ve attained these certs will show a potential employer that you have the ability to learn. Don’t expect to find a $70k a year job right out of the gate though, but I don’t think $30k-$35k is unreasonable for your efforts.
As for the CCNP, THIS IS PURELY MY OPINION, by from experience a college degree (even if it’s an A.S.) is worth A LOT of money to you in the long run, because you’ll have the chance to get better jobs. Not saying you won’t without it, just saying you are stacking the deck in your favor. Getting a BS in IT and MS in MIS was the best thing I’ve ever done! My certs have long since expired, but not my college degrees!!! Now I have degrees backed up by experience, and I promise you this, on most days I will get hired over non-degreed individuals with similar experience. That is a proven fact! The industry is so competitive these days that you need that degree if you really want to move ahead in the IT field and make what you are worth.