so I just looked that up, and I have a few concerns with it. 2000 watt hours translates roughly to 166AH, and it is pouch cells which are the lowest energy density and the most supseptable to damage of the three standard formats of LFP.
its on sale for 2600.00 but like you said a DIY 280ah LFP would cost you about 900.00.
you can gt a 200 watt pur sine wave inverter of the quality in that unit for about 2 to 300 bucks, and I am not sure why you would need two Mppt controlers but I got mine (40 amp) for 200.00, as for touch screen display if you want that I guess but there 30 bucks on amazon and I guess and ardurino could be programed to display all your things you want, so another 40 bucks...
if all comes down to how you want to use it, if you want it portble to move around and dont want to have to do anything to build it then if you can aford it ya it might be the way to go.
if you looking for the best battery preformance with a solar system in your trailer I would go the DIY route and not worry about the display, get a bluetooth BMS and you have your touch screen display on your phone.
Steve
