Web Scraping expert

https://www.shopittome.com

Can you take a look at this website and let me know if you’re interested in replicating it. It is basically an aggregator that scrapes all the fashion websites for sale items.
can you estimate costs to do a test scrape for 10 links?
I’ll prepare 10 websites and we can start, I need to know if these sites block us
How often should we scrape the site?