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As mentioned, kits generally cost you more than getting the components individually on your own. But for convenience sake, I do believe that Renogy is reputable. 200 watts is not very big, it would work well for a single 12V battery setup and be functional if a bit light for a dual 12V or 2x6V series setup if you've got a lot of good sun when in use.
A 2000 watt inverter doesn't care about your solar. It cares about a large capacity battery setup to draw from and proper wiring. 2000 watts / 12V = 167 amps of current you need to design around. That's a lot of batteries and really really fat wiring, and the risks that go along with that much current. Now this is just under full load, less load means less current drawn from the battery, but if you want full capacity from the inverter then this will need to be figured out. I'm guessing you'll need 4+ batteries to run it at full load.
Now if you have the larger battery setup required for this, you need to pair up the solar so that it can actually recharge the batteries. Lead acid batteries will want something like C/10 - C/8 bulk charge current to get them recharged from a depleted state. Let's say you've got a 4x6V series-parallel battery setup for this, that's roughly 400 Ah. C/10 rate would be 400/10 = 40 amps of current needed for good charging. To deliver 40 amps of charging current, you'll want at least 40A * 14.4V = 576 watts of solar panels. These are very back-of-the-envelope calculations, but just trying to offer some ballpark numbers to match up with the described goals.
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2012 Aspen Trail 2710BH | 470 watts of solar on the roof | 2x6V GC batteries | 1500 watt PSW inverter | Micro Air on A/C | so far strictly boondocking
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