1) Don't bother stocking HBG with BG. If you're going to have a HBG pond, great, get the lower reproduction benefit. If you're going to have BG, they will soon catch the HBG is size and overwhelm them in numbers.
2) Don't build a dock in December with wet treated lumber. It will only look good in Winter when it is wet.
3) Don't try to suck and then pump water through a 1" line with the ball valve closed.
4) DON"T WAIT 15 YEARS TO BUILD YOUR POND!