Dubia roaches are great staple and so are silk worms :) I have a little guy also just turned 3 months can I see a picture of yourse :) I am currently feeding him gutloaded 3/8" crickets about 2 a day what about you I also have a 5 month old who eats about 10-12 a day 1/2" he's a little obese boy...
Rambsy is in our thoughts rip and sorry for the loss he was a great looking guy this just shows how important it is to keep proper inclosure and proper supervision atleast you were there to comfort him in his final hour
I prefer the tube lighting as stated above it give full coverage and the 10.0 is fine for larger cages taller than 30" but make sure he or she has space to get shade if it dosent want the light also I use the zoomed t5 reptisun 5.0 in my 24x24x48 but once the light goes in 5 months I will be...
The screen cage might be a little big for him yet do you have any pics of him and did you get the screen cage for when he is older 5-6 months just to have it when he is ready :)
Good to hear congratulations it helped me to first hold my guys before they go to bed and have them fall asleep on me trusting and did that for a week and since then they just crawl on me :)