Basement sump

[ALBERTA REEF]

1. the ocean runner head high is to low for your needs. I would pick a good external pump that will meet your needs of 10ft plus ten times main tank volume.
2. the heaters will be fine in the sump.
3. wrapping the pipes with insulastion in my opinion not needed, but will not hurt.
4. install a gate valve close to the flor as yuo can will control the noise in the sand.

The only problem I see with your plan is the location in the laundry room where the is soap and other chemicals that could possible accadently fall or be mistake going in ryour sump. suggest making a sump room. you can always plump to location.