Bose 301 modifications

Okay, dont laugh too hard........I'm new to the forums and have a question to pose for the experts.  I find myself in possession of two pairs of Bose 301's.  Yes, I'd like to put gasoline on them and strike match BUT....I like to experiment with things too.  Does anybody have any ideas (other than my previous one) on how to improve the sound ie swapping out the speakers inside the enclosure.  My 14 year old daughter wants me to install a stereo in her room and I thought that since I have the 301's I might be able to soup them up a little.  
You'll never turn that sow's ear into a silk purse.  The best thing you can do for them is to get the Loki equalizer from Schiit and try to fix the sound electronically.
I would think that if you were to swap out the speakers, they would have to have the same parameters as the old ones because the crossovers are speaker specific.
The, "crossover" in 301s was a single, cheap, aluminum electrolytic capacitor(I’ve forgotten whether it was 4 or 6 uF). I used to stock/sell the drivers, purchased from Madisound(who carried the manufacturing over-runs from Bose’s supplier), for(literally) a couple Bucks each. You might call them, for suggestions on what woofers will fit the holes and perform well in the cabinet volume, properly matched tweeters(efficiency/dB), as well as an actual crossover. Virtually anything would be an upgrade.
I’d buy new drivers and crossovers, and then put them in a different box.  Use the bose speakers in your fireplace to heat your home for an evening!

If they still make sound, I wouldn't do any mods to them. Your daughter wouldn't notice the difference anyway, and I bet she will be thrilled to have them as is. IMO, your free time could be spent more productively.
Just my 2c...