IMO, a 1000k light will be way too close to your plants with that setup.So I decided to take the racks apart and most likely use them to build my new designs. lol. I came up with this.
Right now it has a 48 in diameter and its 8" wide due to me not knowing what i am going to be going with yet for piping.
Thinking of either 3 or 4 lvls and 16 plants per lvl and a 1k hps in the middle.
For supporting the levels I have came up with using the legs from my shelves I will make four corner's and use 1/2 osb and make gussets with a 2x3 in the middle on the 45 going down. This way the 3/4 osb will hold it all racked and I will just screw down into the 2x3. The 2x3 will be on a 45 from the bottom of the 3/4 to the 2x3 post.
It would be nice to be at least 16" away so your trichs don't burn up.
just my 02 bro