Creating An Rpsblast Database From An Hmm Profile Library

I have downloaded the HMM library file from CATH and would like to convert it to a rpsblast database.

Therefor, I think I need to do the following steps:

1. Extract the HMM profiles from the library (this seems to be a simple split at //)
2. Convert each profile into a PSSM (with something like this)
3. Use formatrpsdb to create a database from the PSSMs

Is there a smarter way to do is? I do not want to use hmmsearch directly because I would like to integrate the CATHdb into an already exisiting rpsblast framework.