Using Canonical For Backlink Purposes?

Hello fellow Webmaster

I'm here today to ask a weird question i hope this section of the forums is the appropriate place to ask this type of question, before i make any stupid decision its safe to ask people at google first right? I have a website and i sell digital goods, i offer paid items and free items. i give free items for the purpose of attracting backlinks from other authority website so i could rank better in serps.

Now i don't want to create more free stuff, why? because this will only hurt my brand too much free stuff makes people not buy from me and instead the'll only wait for new free stuff which i release every week whereas the paid items i only release every month. plus since the number of free stuff increased the sales dropped so i need to come up with a new SEO strategy.

so i came up with a strategy, I need to build a new website for the purpose of frequent release of free items, Build Backlinks and using canonical tags to credit my main website giving all the credit, PR, link Juice etc.. to my main website. i have drawn a simple diagram so you could understand more about whats in my imagination, it took me 30 min to draw this hope you have some time to give me an answer.