I have no, repeat NO, experience with remote pickups. But the way you have the suction hose with the loop at the top, is there any way you could route the hose with the loop at the bottom? When I did piping design I always tried to eliminate a high point on a pump suction as it takes a lot of flow to eliminate the air pocket at the top. If this is a stupid comment just ignore it.
"We live in a time when intelligent people are being silenced so that stupid people won't be offended".
