Your thoughts on the 5.7 hemi tick

I am or maybe I should say “was” the proud owner of a 2011 ram 1500 truck with a 5.7 hemi.
I’m so disappointed in the 5.7 that I feel maybe I should buy, and I hate to even think this but maybe a Ford!
I’ve been bitten by what I am being told is the hemi tick. (And my motor is not making any tick at all) I had never heard of this until I had my CEL came on 3 weeks ago. Code was for cyl 5 misfire. Bought a coil pack and plugs and replaced them that night. Next day light on again. Cleared it and again next day back on. Bad coil pack? Switched #5 with #1. Next day cyl 5 misfire. Got on the web, googled 5.7 cyl misfire and found there is a major issue with the hemi.
Finally pulled valve cover off yesterday only to find rocker arm not moving much on #5 cyl.
Sick to my stomach.
How can this be happening. Only 60k miles. Driven softly since I bought it a 30k miles.
Looks like I’m buying a cam and lifters or am I? Seems as tho there’s a supply issue with lifters.
Ok, so now the part that I really need help with. Help me understand the 5.7 engine.
I know this is a early “A” group/forum but I’m hoping someone here can explain a few things. Mainly the timing procedures. The phaser. The reflashing if it’s not a stock cam. What keeps this from happening on the new parts I end up buying? I was using Mobile 1 5-20 but so many are saying it’s not good enough oil lubrication that I should be using redline or royal purple. By the way I only used the mobile because that’s what the original owner had always used. I’m thinking once this is all fixed going to brad Penn 5-30 because it has zinc.
Sorry for the negative post but the mopar people have really let me down with this cam/lifter design. Plus I don’t understand these modern engines and computers.
Any help would be greatly appreciated.
Thanks, Rod