how much for a cerberus?

I'm afraid that I don't have the appropriate encryption skill nor the Data Interface for Caldari Ship invention just now - but I can actually build one from BPC (a friend of mine acquired a couple a while ago and they were sold for profit - and funding Rooks/Falcons!).

So, if we can get a BPC it can be done - a BPC is likely the more expensive part. From the BPC it would be reasonably easy to buy the items necessary, which can be determined fairly easily.

Search contracts for a BPC and get the numbers from there.