Budget 6.5 midbass with enough xMax

I am searching for some cheap midbass drivers to put in my car doors.
Needs to be qts more than 0.55, and xmax more than 5mm fs no less than 60hz.
All i could found are the faital pro 6fe100 and peerless sbs 160f35al01-04.
What are your oppions?

Drivers with those specs are so expensive

 
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