Purchasing barely used NAD gear

The biggest concern is the power supply caps on the amp.  Even lightly used, old electrolytics age, and a bad one can blow the whole amp.

On the other gear, even if your caps leak or burn out you it is rarely the cascading failure condition of the amps.

In other words, sounds like a good deal, consider getting the amp recapped.

I wouldn't do it. Recapping is a drag you don't need and won't want to do. Seek out other avenues.

Thanks guys.  Recapping is not something I have the skills to do.  Would the law of a diminishing return come into play here?  If it's spendy,  I don't see the point.  I'm not a rich guy LoL

Well, that is pretty inexpensive. NAD gear was great for the money. I actually have given my integrated amp to a friend of mine that is 35 years old and it bested his inexpensive contemporary stuff… not recapped. 
 

Honestly at that price, as long as it works and sounds good to you, sounds like a bargain to me.

Time - cost - quality - risk.