Recently bought a 2001 Blazer LS 2wd, front end needs work. Rear axle has been replaced with full size and I'm trying to find out if it's worth it to try and do the same on the front. Conversion to 4x4 and full size front end. Completely new to this never done more than change parts/small repairs and maintenance...

 

Yes, lots of people have done it. It can be relatively easy, or it can be a ton of work, depending on how you want to build it.

Here's a picture of mine.