How much SACD do I need?

I've acquired a good number of hybrid CD/SACD disks and would love to listen to the SACD layer. Here's my situation, I have a CD player with which I'm very happy, works well in my system, and will keep (Linn Majik). I would think that some amount of the cost of higher end SACD players goes into getting decent redbook CD playback. What do I need to get quality SACD playback (two-channel)? That is, I don't want to sink a lot of money into reproducing redbook CD playback (already got that). But don't want to spend so little that SACD's end up sounding inferior to my CD player. Would something like a Marantz 8003 or Sony 5400 work? i.e. would a Marantz 8003 player the SACD layer do better than the Majik playing the CD layer? Would appreciate any thoughts and guidance. Tks.

John