Thank you for considering RSVP Pro!! I think it has everything you need
:
1. Does RSVP Pro generate e-Tickets with QR Code for checkin?
Yes, you may add a QR Code to your printed tickets for easy attendee tracking.
2. If yes on #1, does JEvents display a page on screen verifying a tickets check in, that is perhaps customizable?
When you scan the QR, if you are logged in as user with permission to track attendance you will see ticket is valid. If you are not authorized to track attendance, then you will see a "non allowed to check" message. I made a demo about setting up a conference site some years ago at jandbeyond conference. Please check this link to see it:
https://youtu.be/qrsodQYbmPM?t=22m30s
You can choose which usergroup is allowed to track attendance.
3. What payment processors does RSVP Pro support?
We provide Paypal and authorize out of the box and you may integrate the purchase with VirtueMart or Hikashop and then use whatever payment processor is allowed there.
We are also working in a solution which integrates Omnypay Payment library (which supports this
http://omnipay.thephpleague.com/gateways/official/ and this
http://omnipay.thephpleague.com/gateways/third-party/) and we are looking for testers so we would be really glad if you help us on testing it and we could definitely prioritize the development of the payment processor you need if it's in Omnipay.