However just looking at the heads it appears that they need an Alignment.
What exactly are you seeing that tells you the heads are not aligned? Are you quite familiar with what perfectly align heads look like? First thing to check is the head alignment screws....is the lockpaint broken? Do they look like they have been turned by someone? If they look "unturned", then they have the original factory alignment and that should
not be tampered with. Heads do not "go out of alignment" all by themselves.
If someone unqualified has misaligned the heads, then yes, they heads will need to be realigned. Also, if the deck has been used for a significant amount of time with misaligned heads, then the heads will be damaged and will need to be re-lapped or replaced.
As far as an alignment tape, you will only be able to adjust the azimuth with it. A scope will be needed to do that correctly. Adjustments like head height and head tilt (zenith) are aligned by other means. And this assumes that, in fact, the heads actually have been adjusted out of alignment by someone.
Generally speaking, if heads have been put way out of alignment by someone (incorrect azimuth, zenith, height, wrap and penetration), only an experienced RTR technician will get them back to perfect. On the other hand, if someone has made very minor (incorrect) adjustments to
only the azimuth screws, then yes, with a test tape and scope, you can get them back to proper alignment.