There is a seller on Etsy with a few listings of needlepoint kits that are probably what you have. It appears that what you get is the canvas and the thread or yarn.
Gobelin Tapestry Needlepoint Kit Mucha-Brightness of | Etsy
Most of the kits I have purchased over the years include all the items you mention (directions/chart/finished picture) although I purchased a "canvas only" thing a couple years ago that I still haven't stitched. I have the yarn for it, just haven't had time.
Hopefully, the Hudemas people will get back to you although I fear they will say the "kit" includes just canvas and threads. There are needlework groups in TV although I don't know if any of them are meeting these days. If not, maybe someone in the group could Facetime with you to help you get started.
Good luck. I'm sure it will be lovely when it is done.
kathy