FWIW:
My thought is that you can buy a new one for about the same money...or $100-$150 cheaper if you're not stuck on getting a stainless model.
If the extra mags are not genuine Ruger mags (and the 40 rounder surely isn't), they may not turn out to be much of a "bonus".
The 195 seriies was still using the "pencil barrel", but some do shoot rather well regardless.
The heavier "tapered barrel" started somewhere in 580 series range. If that is what you're after, the gun you are looking at aint it.
All lightweight carbines will "string" their shots to some extent as the barrel heats up, and the newer Mini's are no exception. They just don't do it as badly as the older versions. On a related note, I hear that the short barrel "tactical models" shoot tighter than the standard-length versions. Some say that that is due to it having different harmonics, some say that it's due to the muzzel brake providing a dampening effect. I can't say either way. About all I can say is that these aint exactly target-grade guns that we're talking about here.......if ya get my drift.
Hope this helps.
DGW