First cycle

[New York]

I'm running a cycle of test e@500wks, everything's going good but run out of test e, 8wks in this week.I have some sustanon 300 was wondering if I could run this to finish off my cycle of 12wks? If so should I just run it for the 4wks or longer? Again cycle is going great nice gains no sides.any help would be greatly appreciated ik you guys are the best here at meso.