I think it will work great for you for its size. I have shyed away from “kits” especially if you are looking for longevity, not because of quality, rather when the system has an issue. I worry that 3 yrs in if something breaks it will be hard to find the Chinese replacement parts and you may end up having to buy a bag of ten instead of 1. Myself I am going to the local irrigation supplier (I know a landscaper who's able to get trade pricing). A bit more expensive but I am using brands that have & will continue to be around. Its not rocket science so it might not be a worry for you, just my level of comfort with professional products.
Do you have a site map drawn up?