8x10s can be pretty cumbersome.
i have a 8x10 and a 5x7 both made by the same maker ..
the 8x10 weighs a ton compared to the 5x7.
it might be worth stepping up, you can always use a reducing
back or a mask if you want to shoot 5x7 again ...
i don't shoot the 8x10 much at all, and find 5x7 is nearly the ideal aspect ratio,
that and 7x11 ...