Found us just YESTERDAY?! Well...
Your Ruger is a great gun. It is the heaviest in it's class, but if you don't mind that, it helps deal with recoil in stout loads. The factory grips are really nice, but if you don't care for them their are lots of replacement choices available.
Ruger has good customer service. If problems arise, (That would be a surprise, really.) they will be happy to deal with them expediently and usually free of charge.
SP-101'sw around my part of town rarely sell for less than $300. All the 'em that I've ever seen have been in like-new or NIB condition, and I would't regret spending that much on one. Rugers are 'hell for stout', and well known for being well-nigh indestructible.
Since you just found us, I would suggest you check out
The Firing Line, the immediate predecessor of this place. The Firing Line set the standards by which all forums should be judged, and boasted of some 17,000+ members before it shut down. The High Road is a direct successor to The Firing Line, and our standards and membership strive to continue the grade of quality established there. Most of the current membership here migrated directly, and like myself, find that The High Road feels like home.
Although it's shut down, I pointed you at The Firing Line because it's still available as an archive in a familiar forum format. You can use the search function to find a TRUCKLOAD of good information about your SP-101, as it was the subject of lots of people's interest. Take a look. You'll see a lot of familiar names from this place.
Welcome to The High Road. Others aim to be here, but we ride it.