Sorry I took so long to reply. Fighting side effects of a new medication and it is a hard time. I couldn’t concentrate enough to drive last week.
I have found that Amazon has 2x2x5 reflective tents by Yield Labs that was pretty good quality.
I grow a lot in a 17x18x60 inch home-made wooden grow box that has done really well for the last three grows. I am a wood worker and had a lot of good grade plywood available with nothing to do with it. In the 17x18x48" version, I have gotten an average of 2 oz of pot per grow. I super crop and top a lot. Along with LST all the time. I added a 12" “apartment” (addition) to the top during my skywalker OG grow because the plant got so large.