I'm new to pools and have been researching until my brain hurts! We want to install a 27' Radiant Metric pool above ground. I'm trying to figure out the best sized pump and filter. I think 1 hp, 2 speed pump is what I need, but I can't seem to find many to meet these requirements. Any recommendations? I also think I want to go with a cartridge filter, I think a 250? Any recommendation for the right sized filter?