righto!
pioneers make nice HU's so good choice.
for a decent budget amp I would go for a JBL 75.4 to power some components in the front doors.
and a JBL 1200.1 for subs duties, depending on the coil config of your subs ( have you got an internet specification link for your particular sub?)
another thing to think about, have you thought about wiring ( and costs of!)?
I could continue but...
for the speakers ill really need a budget for or im going to upset you, that is a certainty!
A total, all in budget would be the best thing to state.