Man they've been building that model forever, so aftermarket and spare parts will be abundant. Plus with that many years of production, all the bugs are out of the system. Should be trouble free for a long time.
You might look at Jegs.com or look for a Blazer forum to get more info. I'm sure you can do a lot to it to make it stand out.
Good purchase, a lot of people don't know that Chevy still makes those. They think all they make now is the Trailblazer!