FWIW - "Factory" or "Reproduction" pieces of weatherstrip are the easiest to use & give the best results simply because they are "pre-fitted" with the correct bends, sometimes even welded or connected in a loop for the best fit. Bulk rolls are cheaper, but installation will be more involved & a bit tedious if you are to get acceptable results.
Plan on at least one "gooey" finger, when dealing with the cement you need to spread it on both parts - let it "tack up" - then carefully place the weatherstrip. I like to reserve an index finger for spreading, then DON'T touch anything else with it! Practice a way to hold the strip glue side up before starting (like with some weights on a piece of cardboard). Otherwise it's likely to curl around & get stuck to everything nearby!
Hope this helps.....