Hello TDPRI land! I have been seeking an older Fender Champ for quite some time. Browsing recently I found a shop about and hour away that is selling a 1977 Fender Champ for $400. The amp looks fairly clean (Pictures attached) and the speaker has been swapped to a 10" speaker. Here are my questions: 1 - Would i be able to swap back to an 8" speaker? 2 - Is $400 for a 77 Fender champ with a 10" speaker a good value?