You're amazing at what you do. Don't waste stressful months starting from scratch learning a new profession (web design) just to launch your site!
I say this with love but I've designed and provided tutorials assuming you don't know the first thing about web design. Most people who buy these templates would consider themselves noobs and I barely have support requests ¯\_(ツ)_/¯
Web designer? Starting with a base frees up your time to focus on creativity.
Brand designer? A website is a juicy value-add. Be transparent about the fact it's a template that comes with tutorials so you can empower your client to DIY once you load in branding and content for them.