Digital BW, The Print

Hi all,

I'm currently eyeing an Epson 9500 that is offered for sale in my 
neighborhood. The idea would be to convert it to a dedicated B&W 
using Paul's Carbon-6. However, I have some questions:

- What would be a decent price? 
- What are the caveats to look out for when testing the machine? (of 
course a nozzle check, but what else?)
- I have been looking around for empty refillable cartridges but have 
found none so far (e.g. MIS offers the cartridges, but not the 
chips). Any pointer?
- If the above fails, could I start with a MIS prefilled Eboni-6 set 
and refill thm with Carbon-6? Are these sets not compatible?
- Any further considerations?

Thanks for any advice

Joost