Agree with @donvito101 and @akg_ca on pairing your MLs with higher end gear.
If it were me, I would have reversed your spend. That is the 15K or less you spent on the speakers into a higher level front end. And the 5K on the speakers.
But it isn't me, and the OP has specified a 5K budget.
I believe there are certainly many used and even new integrateds, and some with DACs included, that will pair very well with the 13As, for his budget.
If you are open to separates, the latest Benchmark DAC/Pre with their latest AHB2 amp is another one to consider. And you can make this happen NEW, for 5K.
If it were me, I would have reversed your spend. That is the 15K or less you spent on the speakers into a higher level front end. And the 5K on the speakers.
But it isn't me, and the OP has specified a 5K budget.
I believe there are certainly many used and even new integrateds, and some with DACs included, that will pair very well with the 13As, for his budget.
If you are open to separates, the latest Benchmark DAC/Pre with their latest AHB2 amp is another one to consider. And you can make this happen NEW, for 5K.