Swapping out speakers that are not designed for the cab can be a crapshoot at best.
They may sound good, or could sound bad.
You need to model the cabs internal measurements with the T/S specs of the speakers to see what/if any modifications need to be done.
Also, it is still only a 2X10 cab. Depending on the style of music your playing, it may not be enough no matter what size amp or speakers you use.
Life is good as a "Bottom End" dweller
Mesa Boogie Club #92 / Big Cabs Club #37