I recently purchased the Archer C8 and the TP-Link RE360 AC1200 Dual-Band Wireless Range Extender as a kit. I found out that the RE360 was just discontinued so I can't buy a second one. I want to have a 'mesh' system so these all act as one network and I don't have to log into the router and the extenders separately. And I'm in a house with very thick walls so I need a LOT of help and need 2 extenders. Should I purchase the RE450 additionally for a one network solution that's very strong for my whole house?