I don't recommend that. Integrating the sound will be more trouble than it is worth. You will have to deal with crossovers. Very good ones will be very expensive.
You will also have to consider the speaker sensitivity. The 8"er must have a sensitivity of 93db too to match the FE127.
Sensitivity is also affected by the box design. To build a floorstander with the 127 and the 8 inch, you are in principle building two boxes on to of each other.
My reco is a pair of bookshelf speakers plus a sub or a standalone floorstander. Frugel, pensil, bass reflex.