You're pics make me want scour ebay and keh for some legacy glass
Try thrift stores like salvation army. In the last couple weeks, I picked up the following:
Minolta 135/3.5
Vivitar 135/2.8
Vivitar 75-205/3.8 Macro zoom
spent around $40 total.
My other legacy lenses I've picked up (all via ebay), all Minolta rokkors
2 50/1.4s...one in MC and another in MD
50/1.7
50/3.5 macro
28/2.8
200/4
35-70/3.5 macro zoom
I also picked up via CL a voigtlander ultron 35/1.7
It's almost becoming an obsession! But it's fun playing with lenses decades old and seeing them produce awesome pics.