Yes I know, just that it's not the moment, in the last 2 years here in Argentine the dólar raise almost 100% so I'll wait for my next real upgrade
For the first option, the addition of an extra woffers/speakers that I already have, should be cheap and no so complicated, not sure if I'll need to do something extra with the crossover or buy a new one.
For point 2 I'm less confident of doing it.