Where do I go now?

[Sly]

No you shouldn't need to , he makes one kit, and it's up to you to build it according to the CRL ANH. The helmet he supplies is for the Stunt version. If you wish to build the Hero version, you will need to source the appropriate helmet for accuracy.
If you plan to build for higher levels of accuracy check out the EIB and Centurion build threads and requirements .
Both Altair and I built straight to Centurion. It is much easier to do this from the outset and isn't much more work or expense.
Are you using the same forum name over on FISD?