Are you just going to run deca or are you going to stack with something else? If you don't want to run a high dose of test just run 100 mg a week with the deca and you should be fine. Another good practice IMO is to run the test two weeks longer than the deca. Good luck
It looks like you are good to go, man. I have always heard (and experienced) that one should run at least 1.5 times the ammount of test as deca. So, you SHOULD be good at 450 test, but hell, you only live once, right? Give it hell, SON!