I can't help out much with finding a pair but I would suggest sticking with the jacksonii merumontana. R. acuminatus is now listed as Critically Endangered and will finally be clearly listed as CITES Appendix II species which means their ability to be imported for the pet trade will be greatly diminished. This is a huge win for the acuminatus as the limited number of animals that are currently in the wild need to stay there so that we don't drive them to extinction.