2-way with Oberton 6B150 and Faital 1440

Im planning to build a speaker with Oberton 6B150, Faital 1440 and RCF HF950. Is this a stupid idea?

I cant find any information on the 6B150 here in diyaudio, is it a bad 6,5"?
I want to keep the speaker pretty small so thats why im consider the 6B150.

6B150:
https://en.toutlehautparleur.com/oberton-6b150-speaker-8-ohm-6-5-inch.html

HF950:
https://en.toutlehautparleur.com/horn-rcf-hf950-90x50o-throat-1-4-inch-front-11-81-x-11-81-inch.html

HF 1440:
https://en.toutlehautparleur.com/compression-driver-faitalpro-hf1440-8-ohm-1-4-inch.html

Sorry for my bad English..

//B