A reference of -16LUFS is probably a good compromise for music production and conforms with a vague concensus for CD mastering and on-line mastering. iTunes Sound Check and Apple’s portable products use an integrated loudness of -16.7 LUFS. (Hypercompressed commercial CD releases are often mastered much higher than this. -10 to -8LUFS integrated). -1dBTP for peaks is a good idea to avoid the possibility of inter sample peak distortion. LRA might be expected to be between 4 and 12dB but varies enormously depending upon the dynamics and type of material.
You could also consider keeping a separate 24-bit audiophile version of your master for future use.