Here are some of my custom template works either from free or commercial templates. Do you think this already minimal enough?

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Nuance Minimal Demo | Minimluv Template Demo | UBMinim Demo

If you like my work and need a quote for developing or building minimalist Joomla template for your website, don't hesitate to contact me at erwin [at] joomla-labs.com.

See you in the upcoming project then.