I hear ya! There's probably lots of fancy stuff you could get into, but easy to use + high-end is an equation that I thought might not jive too well. Might be good to find a nice local dealer that can do a clean install for you.
https://www.kandwaudio.com/kw-audio/
KW Audio is a fun place to visit. They may have some ideas for a good receiver and I'm sure they'd do the install. Would probably cost a finger, likely not an arm
