I can't reply about the RSP1,
but remind you about the important factors for dxing :
1. Propagation and signal
2. Site and antenna
3. Receiver
So, even if you had to change of RX later, already get an antenna above your roof, even a non directional or fixed one. A mid term is to use a 3 element Yagi oriented to your favorite area, or against the strongest local station.