I've NEVER done anything remotely similar to this...

OK I've made a gingerbread house and Halloween props and sewed costumes if that is considered close... but I really don't think it is... I've looked on The Dented Helmet several times on the "how to make" and I still don't recall creating anything close to a Mandalorian outfit before.

Is this task fairly easy? Approximately how much (US $) does it cost to make a decent looking one? Any tips that I (or anyone else) should know in advance before making one?

This is something I've been wanting to do for years and just have not done it ---> yet.