Model 3053-TKV has C channel Rail?
No, it does not.
Is there a battery back up already installed in this model or is there one that can be purchased?
This model does not have a battery backup installed and one cannot be added to it.
Can belt and track be shortened?
No, this belt/ rail cannot be cut down.
Is the model plug and play ready for a backup battery?
The QuietLift Connect can not have a battery backup added to it.
Does the Model 3053-TKV include any of these: Soft start-stop; motion detector light; close timer
The 3053-TKV model garage door opener does have the soft start-stop, it does not have a motion detector or close timer. You can use the Aladdin Connect app once it is installed on your smart device to automate door closing times.
Which of your belt drive models have a manual release? And do any have a soft start/stop function?
All of our garage door openers have the emergency pull cord function for the manual release. To view the features of our different garage door openers, like GenieSense technology or soft start/stop you can view our DIY retail models here: https://www.geniecompany.com/garage-door-openers/retail.aspx
Will the 4042 opener work on a eight foot door?
Yes, it will as long as you add the extension kit, EKBC to it.
Does this opener come with track allso
Yes, it does!
How long can I expect the belt to last? I currently have a Genie screw drive and the threads on the screw are wearing out. Would a chain drive last longer than the belt or screw drive?
This can vary depending on usage, and other factors. The belt does have a fifteen-year warranty (on the belt itself).