What you have to have to qualify for payment plans?

I was looking at buying a new PC, mine is very old and out of date (like 8 years old). The PC I want is a Falcon Northwest system for 7k. They do have payment methods but I wonder in general what you need to qualify other than good credit. I recently have had a bad credit run in and am way overdue on my cards (my boss wouldn't pay me so I got behind, and am now unemployed). So I doubt I would qualify for the 70 or so a month plan on 7k. My question is this though, generally do payment plans overlook bad credit if you are willing to pay, say 7-800 a month on a payment plan so you can have the PC now?