Go for the bigger pump. Can always run it at half speed being a DC pump.Jacod dct 2000 or jacod dct 4000?
Yes, you got two 90 degree elbows. If it is a problem, I would remove the blue horizontal return PVC pipe and replace it with a longer flexible hose. Do admit that the blue pipe do look neater.My return runs across my sump then up, would this increase the head height ?