You wanna go all out get both. Run the test tren stack for 6-7 weeks then drop the tren and keep on with the test for another 4 weeks and overlap that with some ghrp6 and hgh (look into how to use the two they work well together). Then keep on with the hgh/ghrp combo along with pct and beyond for as long as you can afford it.
Now since you probably wont' do that ( not an insult just saying bc you only spoke of using one or the other) don't even fuckin bother with two kits of hgh. YOu might (I doubt it) get a decent run outta using ghrp6 with the two kits but anyone who knows any better will tell you flat out you will not get the same results from a decent AAS cycle with a good pct...but as you can see my idea of a good pct is what you are considering an alternative to a cycle.
BTW in going all out check the sticky on how to post a question like the one above here, ie. what is your cycle history, your stats, your goals, your favorite flavor of ice cream ya know