have you contacted Reed at Workturbochargers? With the inventory components he got from Limit Eng once Chopper closed the business, he just may have individual components (new / good used) to make one. TA49s are listed on his website for purchase - build to order about 3 weeks he notes.
If you're interested in a TE44 with a polished compressor cover and billet comp wheel, Reed has one listed in his garage sale section of his website ready to go. Nice turbo... link below