Just throwing this out there, as it may work alright - The TFM Audio Tool offers simple DTS encoding capabilities that may achieve what you’re looking for.
If you pm me the lossless files, I’ll encode them.
Otherwise, I suggest 2 variants of the DTS file.
File Based Playback (Computer): 16 bit, 44.1khz - Closest to original source.
DVD/BD Based Playback: 16bit, 48khz