With adequate research and understanding you can put together a darn good PSA for about the same price as those sad low ballers we all see in the LGS rack. Why not get the barrel profile, length, twist and gas length you really want along with other specs - not what some bean counter foists off on buyers who don't do their homework.
I would pass on the Sportical.
The biggest issue with assembling an AR isn't so much getting the parts together right - it's getting the right parts together.
US Army 1966-69, VFW Life Member, Retired Geek