Digital Interconnect Issue

All right advice please (no $1K plus cable need apply)

Two step process:
Step 1
Looking to replace the Cardas lightning (1.5m) between transport and Audio Alchemy DTI Pro 32. Prefer (not a mandate) RCA one end BNC other (for the AA piece).

Step 2
Will get new transport and move to AES/EBU at each end. Current transport doesn't have AES/EBU out DTI has one in.

Input Please.

F7