No mention on a network-card nor RAM-size. You'll need to sort out these before you can even think about joining the interweb.
If you do you'll soon gonna grave for GFX-card and bigger monitor, but plain AGA does work in principle.
Same for playing MP3, possible with just Paula, but a sound-card is defintly needed if want some real qualtiy.
For real world use I would also advise doing something bout that case (yuk it's gone past the stage of yellowing right into browning ....) and you'll need a CD-ROM.
Still at the current bid (100Euro or what ?) it would be a sweet snap ;-)