Small Dayton PS95-8/DS135-8 Build

Hello

As i have ordered a couple of wifi/bluetooth amplifiers (Arylic Up2Stream Amp 2.0), and wanted to build my own first set of speakers for them.
I found the Dayton PS95-8 and DS135-8 to be the right size(and cheap).
So here is the idea i have come up with:
PS95-8 - full range in upper chamber.
DS135-8 as a low(ish) woofer with a DS135-PR passive radiator in the lower chamber.
The lower chamber has these internal dimensions 15cm/15cm/15cm, and the upper chamber is 15cm/15cm/10cm.
I have uploaded a quick rendering of the idea i have.
DX9s1kX

What kind of crossover(if any) would be needed? or would notch filters be enough?
Here is the curve of the 2 speakers.
PotcMIw


Link to the drivers:
Dayton Audio - PS95-8 3-1/2" Point Source Full-Range Driver 8 Ohm
Dayton Audio - DS135-8 5" Designer Series Woofer Speaker 8 Ohm
Dayton Audio - DS135-PR 5" Designer Series Passive Radiator

Kind regards