If I understand correctly the outer front axles are the same and can both be replaced using the same part ... passenger side axle... (without replacing the driver side horizontal inner axle part)...?

I have found excellent step by step instructions here... for the driver side...

Does anyone know how much time/labor a mechanic might estimate to do one side?

Anyone with experience in DIY and how much time is involved?

Anyone know of HD front axle options?

Please let me know if I understand this correctly.