Thanks for the quick reply. I put the rear up on a jack last night and pulled the tires to get a better look. Didn't see anything that screamed "this is not right" - which is to say that nothing was obviously broken, unbolted, etc.
TLDR
I would say it feels squishy in the rear.
Longer explanation.
As for the suspension. I did the good old push test on the middle and each side. It certainly have give under my weight and bounced back like it has some spring. I wasn't able to bottom it out (I'm not a light guy). When driving it feels a lot like the old Mazda MX3 I had years ago - which is to say these cars weren't exactly meant for road comfort. I can feel every bump. Then again I can feel most bumps in my Yaris, really only my wifes Sienna seems to float across the road, but I digress.
The rear struts are pretty rusted and there is no boot - well, there is a remnant of a boot from some long lost age, like perhaps around the industrial revolution. Bushings certainly look like they could use replacing on all the linkages. Springs....well they are shaped correctly, how the heck am I supposed to know by looking at those if they are okay anyway. Probably need replaced if I had to guess - I would say that all the parts I'm looking at are original and received no maintenance from day one.