Peachtree/Sage Conversion to Quickbooks

I currently use Peachtree Complete 2012 for most of my clients. With the nightmare trying to convert to Sage 50 2021 and Sage's lack of effort or concern on the conversion costs, I'm considering switching to Quickbooks Pro Desktop version. I was actually ghosted for 30+ minutes on the live chat until they closed at 8pm Eastern Time. Unfortunately, I think I'm out of luck on it being easier than Sage. I have more time than money right now, so I need to do the conversion myself versus paying someone else to convert 13 of my clients. Any suggestions on how to convert my Peachtree company data files to one that will get me to the current QB Desktop version. I'm ok with it being a 2 or 3 step process for each company. I just can't pay anyone over $300-$400 in total for all 13 clients. I've had estimates of $1,000-$1,500. That's just not affordable to me or my clients that have been hit with Covid closures. Any help? Any suggestions? I'm willing to make the change now to QB if I can get easy to understand options. Over half of my clients, I use Peachtree just for payroll, the others split between just GL or GL and payroll. What is the difference between Desktop and Accountant's Desktop?