Two PICs Architecture

Hi All:
"I'm open to any discussion regarding a new design."
Me too.
I appreciate any ideas that can improve design of two PIC
architecture that represented in attached jpg file.
Two PIC will be located on one single board
and send info to remote PC.
I made changes from Three PICs Architecture to TWO PICs one
to represent the idea of increasing functionality of design.
I wrote program for output module.Continue to work
on input program for input module. You can find
the program in PICBasic Pro section.
My guees that using less integrated and cheapest PICs
in dual or triple numbers would boost performance
of design and increase speed for real time
applications.
By giving to much flexibility to PIC, it means that
all of functions will be not use in an applications.
For example for swithing applications better to use
up to 16 preprogrammed registers accessible by
parallel code and switching up to eight PWM
outputs integrated in one IC - PIC.
Because of complexity, I will glad to discuss this
topic and my thank you for your time.
Best Regards,
Leonid