It’s a tough one to split, but they are both good quotes, so cant go too wrong.
I’d say the Symo and Tripower are pretty much on par.
Regarding the panels, I am quite partial to both of these options for high quality at reasonable price. I’m a fan of the QCell Q Peak Duo G5+, but I believe the REC N Peak are a better performing panel.
Of course which company you buy from is just as important as the products, but they both look to get reasonable reviews. Might come down to how they come across in your dealings with them.