What model of TM RAC ? RAC MB, MB combo,OS 2005 OS, LT.. ?
Personally, I did not like the TM Ultra lite steel shaft, only had experience in the stiff flex so I could not say this with experience for the R flex steel. I was having trouble making good contact with the long irons, mostly thin shots with the light weight steel and overall static weight.
The Rifle 6.0 in another set was golden in my pre injury years. The flighted 6.0 was nice.
At $65 for 4-PW, with nice condition will be a no brainer, I would not get it if it's very experienced.
Check the shafts to see if any was bent, especially near the hosel, some of these lite weight shafts will bend near the hosel.
Today, I missed a set of Maltby KE4 I believe it was, to a guy beat it to me by 5 min. 4-9 at $7.99 per.