How can I make this work?

I suggest starting by developing a web presence - unique domain, social meida, etc. Next, develop a press release to send out with demos for reviews from publications, websites and blogs. Positive reviews from legitimate sites will be invaluable in the subsequent marketing campaign.

Publish secondary ebooks in Kindle store and put some link to your main site. You don't need to make seo with this method

What is the benefit to selling the ebook and including the physical product? What is your strategy behind that? I'm curious as to why you want to link the information piece and the tangible piece to your sales process.

Don't see the point in selling an ebook and a tangible product together. Especially since I can't see how the two would go together. What's the ebook going to be about?

You should just sell the product and ship it yourself or use a fulfillment survive like amazon, IMO.

Here is how you could combine the two - information and tangible product. I'm not at ALL familiar with golf so forgive me if I make a suggestion about products that doesn't make sense but you'll know what I mean.

You can sell your tangible product in whatever venue you were considering - you site, Amazon fulfillment, other ecommerce sites AND offer your information product as a bonus to people who purchase other tangible products in the golf industry who are purchasing products that are complementary and not competitive.

I'm guessing that your product is about a grip on the clubs? So maybe approach ecommerce sites that sell clubs, balls or even go to large golf courses and offer them your ebook as a bonus to the people who purchase their products or services. Inside the ebook is information about how your product makes their golf game better with links to purchase.

Publish this ebook on Amazon as softcover (CreateSpace) and Kindle product. Price it competitively and be sure there is great content. Include a link to your site in the first pages so people who use the "look inside" feature on Amazon but don't buy will get to your site - with newsletter sign up so you can continue to tell them about your product.

Now, the people who are giving your book away as a bonus can also point to where the book is being sold on Amazon as a "real" book which gives it better perceived value.

I would start with a YouTube video explaining the product.

Don't get sucked in by all the talk of eBooks, white papers, SEO, etc. that goes on in these forums. Much of that stuff is irrelevant for someone marketing a physical product or service. Would you tell someone opening a roadside diner to market via eBook or whitepaper?