Welcome CZ Steve:
Your tursses look great to me, your first picture shows short legs under the first gusset which I would bet are standing on the front wall, leaving the porch part of the truss hanging by the rest of the truss.
My take on your situation is: look at the plywood gussets and make sure the glue is still intact and holding good, if that is the case you may remove as much of the interior wall as you please.
I was in Ft Lauderdale, Fl in 1962, when trusses really began to hit the building scene. Contractors there built houses by the hundreds. One contractor I becam familliar with was a man named Johnson. Another contractor put an ad in the local paper saying Johnson's roof was supported by mere 2 X 4s and they were afraid the house would fall in.
Johnson answered back with a news confrence on TV wherein he took one of his tool vans ( a Chevrolet ) and sat it stradle the ridge of one of his houses.
The other guy said it was the 2 X 8s under the wheels that was holding the van up. Not to be taken lightly, Johnson built a truss roof upside-down and built a concrete block house with bond beams and cores filled on 4' intervals. It even had a concrete floor, up there, and the house was fully furnished complete with a new Pontiac Catalina suspended up there on the carport floor! He also said that for every family that bought one of his houses, he would give them a Pontiac Catalina for theirs too.
I haven't doubted trusses since.