#1 your inside harvest window. You could chop now if you need the space or you could wait another 5-7 days it'll still put on weight.
#2 & #3 still another week to be in harvest window. But you need to snip the dead leaves asap and make sure you have plenty of airflow so it doesn't lead to any...
Looks to be mostly cloudy at this point. The amber you're seeing is on sugar leaves. The trichomes mature faster on leaves. Do you have a microscope or loupe? You want to get a close up of the bud itself and you'll really be able to tell. The plants still have some swelling up to do. Nice frosty...
Does anyone fridge dry their harvest? I know it's been talked about a few times but I haven't really been able to find someone who actually does it and whether or not it works. A guy I read up on called it low and slow method and said it was the smoothest smoke he's had. I have a mini fridge...
Look up bestva bp2000 those are decent cheap lights. Good dimming good full spectrum decent quality diodes. Last for years I've had my bestva 1000 for years now still use it for my seedling light.
Your "600 watt" lights are more than likely 60 watts actual from wall. Your looking for a true 150-200 watt light from wall. Take a look at bestva I have a bestva 1000 it's 110watts and I've grown some nice plants with it. Get 2 of those for around $150 and you'll be better off than using what...
Hey man don't give up! I'm from Ohio as well. Sounds like you have the setup that'll last you for years to come. Message me I'll help you out. Same as @iliketoast hmu I'll walk you through whatever you need! Most everyone on this site is very helpful and willing to offer a helping hand.
I would separate the herm before it pollinates the others. Also you should pluck away at those seeds. If you keep at it plucking everyday sometimes they stop producing seeds and focus back on flowering 100%.