370 for this cycle stack? First stack ever please help

[pleasehalp]

Test deca and Dboll a 10 week cycle and he told me I will need about 340 dollars. He said this is the real stuff not used for animals and from an actual lab/doctor. I know people who get it from him and have used these things and got awesome results. I just wanted to make sure this would be a good first stack

I weigh 185 pounds 5 11 and about 10% BF and been lifting for four years.

Thanks for any advice bros, first post