Yes. That is a good meter. The best studio meter is the Fluke 8060A which you can get used only. NOS runs about $175. Just to get a general idea you can use any meter. You are looking for something different than the rest, so the meter will not matter much for a simple check.
If you do not have an MRL, how do you know if the client's tape is correct? The good trick on the A820/827 is to look at the hexi-decimal values of the channels in each of your cal sections. If the tape tones or electronics are incorrect, then you will see some values that are out of the average range. This is a great way to look for caps that are going bad. All channels in a cal should be within +/- 6. Usually they are much closer on machines with good heads and electronics.