Looking for recommendations on places to purchase some stainless steel or chrome plated rigging/plumbing items from. Ball valves, hose fittings, etc. I am replacing all the old brass items while redoing the engine compartment.

Try these
Stainless Hose Fittings LTD

NPT threads, fittings, coupling and NTP connectors online - stainless steel adapters at StainlessSteelFittings.com

Teague has alot

Any Ferguson plumbing supply store carries a ton of stainless fittings. They are nation-wide I believe. They actually carry far more stainless pieces than brass anymore from what I have seen.

Thanks all