I have something that may fit your needs, a little larger than your tripod, but I'll bet you can find a few other things to stuff in the bag, too. It's a brand new Red Wing Travel Bag, model RD1648, which measures 48" long and about 10" or so in diameter (black). This one's unpadded, but has 2" nylon straps that serve as a handle or can be used to sling it over the shoulder. I have one of these in that I use and it's held up beautifully. When I had a photo shop (remember photo shops?), I sold this for about $45, but I'll give you this last one for just $35 & I'll pay the shipping in the US or Canada.
I think we have dealt here before; does this sound familiar?:
I’ve closed my photo shop after 30 years and am peddling off the remaining inventory at very attractive prices, "cashing in my chips," as they say. My business no longer exists; I'm just selling out (not breaking any rules here). I am in N.E. PA and can ship via Priority Mail mon.-sat (PA residents pay 6% state sales tax). You may pay by money order or PayPal. Thank you and please let me know if you have any questions. –Dave