I'd try some of the smaller firms Johan in my experience they are often better built ..... (Shameless plug for friends here ) like Gordon at http://www.mitchesmilitarymodels.co.uk/ or Steve at https://sites.google.com/site/reedeesminiatures/ They both offer really high quality castings that virtually snap together or if you want something from a dealer http://www.skminiatures.co.uk/ offer a great range of kits and Steve ( We are popular us Steves ) will bend over backwards to be helpful. I think you are missing out restricting yourself to just metal and trust me I'm a die hard metal man myself
Steve
Steve