Thanks for the reply.
I have looked at the sites mentioned above but they either have examples
using on board UART or bitbashed TX or polled RX.

so far, I think my solution has merit. I will be running the micro at
11.0592Mhz.
If the incoming Bitbashed RX data is 9600 Baud, I will have 1/2 bit time
max. to process any received data from the 19200 UART port.(I have less than
52 uS to process incoming UART data, this is 143 instruction cycles). As you
suggest, I will simply drop UART bytes into a buffer and check for end of
packet byte then set a flag to indicate packet is ready for processing. I
can double buffer this message and then can continue receiving UART data
until a period exists where the message can be processed. The bitbashed port
can buffer data in a similar fashion.

It is great to get some responses that offer constructive ideas on solving
the problem or how to make the process more efficient. Many times in chat
groups people will offer "advice" such as read a book, check out microchip,
by a bigger micro - which does not help at all as these are all obvious
things that most people would consider first. I think often people like to
be seen to be actively replying to lots of subjects but don't actually have
a solution themselves.
Anyway, this is not a grizzle. Just appreciation that I have had a couple of
sensible and helpful replies. Thanks PICLIST

Regards
David Huisman