Hi,
I have an ETSS 800 (rated for 400 gallons.) for sale with new Gen X 77 pump that's only used for about a week. We had to silicone some parts of the
skimmer due to leaking, but the last time we tried it it was working great. The skimmer comes with an additional collection cup that's also act as a safety device so if it's full, the skimmer shuts down insted of spilling everything. Everything is clean and is ready to use. All you will need is the bendable hose so you could connect them.
I would like 350 for everything.
Some pics

I've merged your threads. Thanks!
Ken