The speaker wires length is not going to hinder you
I ran about the same length (up the walls, the length of a long room in the ceiling , down the walls plus the hookup lengths) without any difficulty.
I use the 3 channel amp for the centre channel and the rears, the two channel for the side surrounds.
The separate preamp processor is the " disposable" part, to be upgraded in the future as the codecs change.
Recommended : NuForce AVP-18.... Fully digital with all HDMI (no legacy inputs ). Google the reviews - highly recommended .... Especially with the ARCAM Bluray player to round it out.
I ran about the same length (up the walls, the length of a long room in the ceiling , down the walls plus the hookup lengths) without any difficulty.
I use the 3 channel amp for the centre channel and the rears, the two channel for the side surrounds.
The separate preamp processor is the " disposable" part, to be upgraded in the future as the codecs change.
Recommended : NuForce AVP-18.... Fully digital with all HDMI (no legacy inputs ). Google the reviews - highly recommended .... Especially with the ARCAM Bluray player to round it out.