Not hard at all. OE replacement are not powered. Aftermarket Chinese JUNK are. So pick your poison. Used to be able to mod the OE's with a 3rd gen mirror portion like I did on my 98.
Another option is the slip on's
2015 RAM LongHorn 3500 Dually CrewCab 4X4 CUMMINS/AISIN RearAir 385HP/865TQ 4:10's
37,800# GCVWR "Towing Beast"
"HeavyWeight" B&W RVK3600
2016 MobileSuites 39TKSB3 highly "Elited" In the stable
2007.5 Mobile Suites 36 SB3 29,000# Combined SOLD