I can put you in contact with HWGC who makes affordable PnP machines and also sell other line equipment.
The Charmhigh machines are quite crap relatively speaking and are known to have problems with the feeder system.
HWGC charge about $12,000 for a 64 feeder 6 head and $15,000 for a 100 feeder 8 head.
Can use pneumatics or air-triggered electric feeders with all their machines.
Automated stencil printers are about $20-25k.
As for reflow ovens. I highly recommend upgrading to a mesh/rail oven. I personally would not use anything under a 6 zone (6 top 6 bottom).
Rails cost a bit more but are worth it if you do double-sided assembly or want fully automated lines (at least being able to stack boards on the end of the line).
Feeders, 8mm are around $50 for pneumatics and $150 for electrics.
The $50 pneumatics are fine for 0406/0804 caps and resistors. But for diodes, LEDs, etc use electrics.
Note that the 15mm component height can be done with these machines. You just need to setup manually the pick order for said tall components.
As with any Chinese budget machine, you can run into issues. I have run into a couple, all of which were sorted out by HWGC or our group chat.
For $100k, you could easily get 2 pnp machines, auto stencil, unloader & loader, reflow oven, inspection table, and shipping.