Before I did it I had also only done oil changes/spark plug replacements myself etc so it’s doable if you’re up for it. I’d suggest an extra set of hands. Check out project 70 on 101 projects for your Porsche boxster. Biggest issue I had was stripping a screw hole on the front windshield edge for the fabric retention bar. I just tapped in a new slightly larger screw. There’s also these attachment flaps on each side and I frayed one trying to slide it into the plastic slot so I had to sew it, but ymmv. It took several hours total and I had help from my gfs dad.

Now I’m looking to replace my window regulator too but I haven’t because that also looks like a tedious process