Old links on my blog create crawl errors

Hi, Quite often over the years, on blog.magickitchen.com, I've linked to a product on our site, magickitchen.com. When I go through crawl errors on webmaster tools, I see 374 not found links. Most of those, probably something like 2500-3000 links, come from our blog. The products they referred to have been discontinued.

Here's an example.
http://www.magickitchen.com/menu/main_courses/beef-bordelaise.html      
Linked from:
        http://blog.magickitchen.com/2010/07/
      http://blog.magickitchen.com/2010/07/28/gift-ideas-for-grandparents-day/
      http://blog.magickitchen.com/page/27/
      http://blogtest.mymagickitchen.com/?m=201007
      http://www.kaboodle.com/reviews/beef-bordelaise
      http://www.mymagickitchen.com/2010/07/28/gift-ideas-for-grandparents-day/
      http://www.magickitchen.com/menu/main_courses.html
      http://magickitchen.com/menu/main_courses.html
      http://www.magickitchen.com/retirement-food-gifts.html

In this list, blogtest.mymagickitchen.com is no longer even live. The last three are incorrect, they no longer are listed there, so I can fix those. But 4 of them are from our blog. I don't want to sound lazy, but it will take hours and days to go through each blog post and fix or remove those links.

The developer on our site doesn't want me to use 301s for all of them, which is fair enough, as it would be some 426 redirects.

I did read this: https://productforums.google.com/forum/#!topic/webmasters/Hak1KbPUSrI

And it seems to say that I should go through and fix them. But I thought I'd ask here.  I'm sure many companies must have links to old products out there, what does Google do about them?  

Any advice welcome.

Thanks.