Suggest budget CDP to use as transport

I am looking for suggestions for an old high end or newer budget CDP with a decent transport mechanism to use for redbook playback through a modern DAC (in market for that now). Key factors are solid construction, good laser and transport mechanism for reliable reading of 0s and 1s from the disk and decent coax/RCA SPDIF implementation. Budget is $500 or under. Suggestions? Am currently using a budget BDP to spin disks, but it only has toslink and HDMI out and I am skeptical.

Sorry if this has already been hashed over before here - could not find in quick search of Forum.

kn