Welcome to rocketry; welcome to TRF!
Yes, they are scale rockets.
This link (from the "Coffee House" forum) shows a list of on-line vendors and manufacturers.
Aerospace Specialty Products produce a range of scale rockets, including the V-2 and several sounding rockets. Sounding rockets look very much like model rockets; they're small rockets which take scientific payloads into high atmosphere or low space, and are a good subject for a beginner to scale rockets. Some missiles also make fairly simple scale subjects.
Painting, gluing; this ought to generate some discussion as there are various types of paints and glues, each with their supporters.
Personally, I use enamel paints with a brush for small models, and car spray paints for larger rockets. The important thing it,
don't mix the two - or if you do, use the car spray first, then brush on the enamel, do not use car spray over enamel. It reacts and causes a horrible mess. The other important thing, whichever paint you use, is that
several light coats are much better than one heavy coat.
As for glues, I often use cyanoacrylates. Thin is good for soaking into paper or cardboard to reinforce it. Medium is good for tacking fins into place, and also very good for emergency repairs in the field. Wood glue, e.g. aliphatic resin, is also good for sticking fins in place and for putting fillets at the roots. And then there's epoxy resin; slow cure stuff gives the best strength, although a
good 5 minute brand works well too. For any type, get it from a hardware or model shop, not a common brand name from a supermarket.
Have a look through old threads. You'll probably find that glue and paint has been discussed before.