Need evaluating quote options

I’m relatively new to solar and am planning to add a set up to my house in rural AZ.

I’ve received the following quotes:

Quote #1)

• 8.8kw system : 154% consumption offset

• 24 370W Boviet panels (BVM6610M-3705 VP )

• Lux inverter ( LXP-LB-US 12k)

• dual 5 kWh lithium batteries.

• installed cost of $30,048 and an after tax credit cost of $20,034.

Quote #2)(same company as quote 1)

• 8.8KW system : 153% consumption offset

• 24 Boviet panels (BVM6610M-3705 VP )

• 7.7kw SMA Sunnyboy 6-8k string inverter (can also choose a tigo inverter for this option).

• installed cost of $21,222 and an after tax credit cost of $13,856.

Quote #3)

• 6.15 kW system: 134% consumption offset

• 15 Msolar 410 Watt panels

• En phase Inverters (IQ8PLUS-72-2-US). They told us this inverter can be hooked up to a battery later if I wanted to.

• Gross cost $17,100

• Out of pocket cost after our rebate $16,600

• Net cost after tax credits $10,470

quote # 4

Tesla 8.05kw for my current needs Install cost of $22k

Any help with the following questions would be really appreciated:

Does warranty really matter if the companies servicing them don’t last? For example, Quote #3 has a 20 year warranty on equipment and installation.

From my research, the panels don’t matter as much as the inverter. I’ve seen lots of people using enphase inverters. How do they compare to Tigo, SMA, or Lux?

Any issues with Boviet or Msolar panels?

Being that I’m relatively new to solar. What should I really be scrutinizing when getting quotes? What equipment is best?

Do most of you guys get a battery or just the option to hook up to one later?