Excelsius I wouldn’t muck around with a “tubeless conversion kit” if I were you. Heck, ai wouldn’t do it myself, and I’ve been on road tubeless for about seven years now. There’s too much to go wrong hacking it; get a tubeless compatible wheelset or forget it, that’s my advice.
My suggestion to you is to get a pair of Schwalbe Aerothan inner tubes and pair them up to the Pirelli Cinturato Velos or some other tire as you prefer. As noted upthread, TPU tubes like Aerothan are lighter than standard tubes, more puncture and flat resistant, and have lower rolling resistance.