Thanks for the welcome Tom. I have obtained got what I needed from a shop here in Melbourne Thanks for your suggestion.Hi Roger and welcome. Good luck with the ships. I can't direct you to plans for the Harvey but there is this web site: https://www.modelerscentral.com/model-ship-plans/ They don't say anything about Billings but you could possibly check with them. The best alternative is probably to contact Billings directly.
Cheers,
Tom
Roger