Its not worth it... The B7 is only 102 HP more, it dosnt have VTEC... So just to attain a cam, I would even bother with the swap... Unless your head is dead and u have have to change it out anyways, in which case Id just get a Z6/Y8 head with VTEC...
As for what youll need, if your keeping it OBD0, which theres no reason to switch to OBD1 if your not getting VTEC with the head, is your stock dizzy which you may have to modify to fit, the head gasket (not sure which one), waterpump and timing belt... That should be it...
Honestly tho, for the what 5-10HP you MIGHT (but probably wont) gain from the more aggressive cam, that $100 or so for the cam, $80 for the cam gear, $150 for belt and pump $80 for head gasket set and atleast $200 for tuning it all (oh believe me youll need it tuned with this bastardization of a combo), when its all said and done u could have went and got yourself a worthwhile swap...