HOW MUCH YOU NEED TO EXPECT YOU'LL PAY FOR A GOOD PLOT

What about utilizing an air handler within the basement to warmth the whole house and afterwards putting in a single mini break up upstairs to chill your entire house from your landing area. Here's my house layout:The only 'challenge' I've is equilibrium upstairs/downstairs with a single zone/compressor. So I've a (pretty effective DC motor) ceilin