This is not simple and requires not only collection of facts to determine if they meet your predetermined standards but also a ability to "read" people.

Also, the panel replacement cost can be much higher, mine was simple and done at a good price.

Long story short a "simple and short" contract ended up anything but. 

Here are few basics : % of ownershipsDispute resolution, etcDeath/Disability of a partnerProfit/Loss allocation and capital contributionI would recommend consulting a good attorney to get a list of things that you and your buddy need to discuss and have a framework to draft an operating agreement.

If you want to keep it simple and easy I'd recommend WordPress for the site.

I already have an LLC from a previous consulting business, though it's currently "administratively resolved", a simple fix by filing the state fees.

Insurance is always an issue and not sure what city/ county some requirements for a CUP to operate .

This is an extremenly simple example. 

Don't spend all your ammo (7%) on one shot, because if a costly CapEx expense comes up or something unforeseen happens, you don't want to have to start using costly credit cards for operating expenses :)Good luck!

I specialize in marketing and operations while my wife specializes in management.