I'm not going to be much help, but I recall being in a similar situation 10+ years ago IIRC. I found a binary in either the DBIC or Oracle path that either started or ended with table that gave me a nice print out of all the tables. I was able to eventually get DBIC::Schema::Loader to dump everything and I got everything. Every little tiny object the database had, however it took forever to generate, and it generated waaaaay more schema than I wanted, I'm talking every user/schema I had read access to, every table, view, sequence, object, etc, etc, etc.. I think I ended up specifically targeting the a) schema and b) table(s) I was interested in.

update: have you tried passing dump_directory?

make_schema_at('Company::Project', 
 { debug => 1, dump_directory => './lib'}, [credentials...]
);
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