Northampton fan here. Used to watch Derby a lot at the Baseball Ground in the 70s, (My brother married a girl from Uttoxeter) i was at the Leeds game when Hunter and Lee had their disagreement. All home tickets for the game are now sold out, so with you selling all yours it will be a good night. With the Saints being at home as well parking and the pubs will both be full. Be advised do not be tempted to park at the Cinema or TGIF, parking tickets in force. Most pubs will welcome away supporters just they will be busy. The road behind the away Stand will be vey busy after the game because of the Rugby game so dont expect a quick get away.