This guy used to have top quality screens for his bags. I cant really speak for his screens but my bags are old from 2004 and have had a lot of use and are still ok to go. his reputation is solid imho.
https://www.bubblebag.com/dry-sift-screen-singles-screens-skm1.html
I'm 60 and in pretty good shape but I recently scratched the idea of 10's because 5 gallon is manageable but twice that would not be for me.
concidering 7's
Check these HLG boards. 4 of them for a buck fifty. You will have to buy a driver and diy but its not hard. So for $250.00 you nearly 300 watts of top end lighting https://horticulturelightinggroup.com/collections/quantum-boards/products/qb120-quantum-board
Pond liner on the floor after you caulk everywhere you can. The do some pest management outside the building and keep doing pest management so you dont have to spray anything inside on your plants. Add replacable panda film or reflectix to the walls Paint is better but you get a do over with...
I'm new to led and dont have a harvest coming down yet but halfway in, I am all about a mix of led and hps.
The heat from hps has been giving me the whillies for way to long. I even lost a large crop when an a/c shit the bed.
That wont happen with led. No a/c and you can just keep on truckin.