You dont need to replace the front brake hoses unless they are cracked, leaking, or you can prove they are restricting flow. Have a friend pump the brakes and release them while you try to move the rotor. Both should instantly clamp and release, if one doesnt clamp, or doesnt release, since youve already replaced the calipers then its likely the hoses are clogged internally. Otherwise, your problem lies elsewhere.
As for the spongy pedal feel, sounds like a textbook case of air in the ABS pump. Happens to many dodges and chevys after replacing a line or something that holds a lot of fluid, or something connected to the pump. Under normal bleeding conditions it will not come out, because of the way the ABS hydraulic circuits function, air gets in but not out.
To get it out you need a scanner with functional test capabilities, which will have an option to bleed ABS. what that does is open the proper channels and engage the pump for a few seconds to get the air out of the pump and push it downstream so it can be bled out at the wheels. There is no way around needing the scanner, unfortunately, and you will need something along the lines of a Snap On Solus pro or higher I believe. I know a Verus can do it, but I think the solus pro goes back that far with the ability to do it. Or dodge can do it, they would charge probably 1 hour, so around $90-120.
