Not really a bad stack but just not necessary. They are both test. Test e is a single ester while sust has multiple esters. I would pick one or the other and run 500mg. No need to mix and match. Also, what is your diet like? Dont take this the wrong way but u are fairly under weight for your size. If u get your diet right u would be amazed at how much u could grow. Without a proper diet and training program your test cycle will be a waste.
Go to the diet section and start reading. There's a lot to it! It can't be answered in a single question. By the way, I've done a test e cycle and I've done a Sustanon cycle. But mixing them is a little weird imo. Here's what your actually taking ever week.
30mg test propionate
60mg test phenylpropionate
60mg test isocaproate
100mg test decanoate
250mg test E