As others have stated take it to a small independent shop for an estimate using non-OEM cats. OEM cats are better and contain more of the precious metals and will last longer due to this. However, given the age of your vehicle an aftermarket cat is the way to go.

Given your savings you should NOT be shopping for a new car. You’re car is also worth more than $2k. The dealers number of $2k is the trade value which is lower than the retail value.