Reel to reel

So I was in the market for a reel to reel. Back in the day, I owned a Teac X-1000R with DBX and a Pioneer RT-707. I liked them both so much that I decided to by them again. I have multiple systems so the Teac will go in one system and the Pioneer on another. The question I have is my main system where the Teac will be, I have all Transparent Audion Ultra MM2 cables. In my second system, al my cables are Transparent Audio Super G5. Do I need to match the cables for tape input and output on each system. Although they can be found used at somewhat discounted prices, were still talking a lot of money in cables. Any suggestions?