A highly fave series of mine, I have this mapped out as 4 volumes.
Vol.1 (18 issues)
DC Comics Presents 26 (or use material from Tales of the Titans 59)
New Teen Titans 1 – 9
Best of DC Blue Ribbon Digest 18 (material from Tales of the Teen Titans 59)
New Teen Titans 10 – 15
Wonder Woman 287
Vol.2 (16 issues)
New Teen Titans 16 – 20
Tales of the New Teen Titans 1 – 4
New Teen Titans 21 – 25
New Teen Titans Annual 1
Uncanny X-Men and the New Teen Titans 1
Vol.3 (18 issues)
New Teen Titans 26 – 32
New Teen Titans Drug Awareness 1 – 3
New Teen Titans 33, 34
New Teen Titans Annual 2
New Teen Titans 35 – 37
Batman and the Outsiders 5
New Teen Titans 38
Vol.4 (21 issues)
New Teen Titans 39, 40
Tales of the Teen Titans 41 – 44
Tales of the Teen Titans Annual 3
Tales of the Teen Titans 45 – 58