For the photos, use a third party hosting site like Photobucket or Imgur then link to them in your post. For strap changing tools, eBay and Amazon have everything from cheap Chinese tools to the high end tools like Bergeon. Up to you on how expensive you want to go, but you get what you pay for.
There are a myriad of strapmakers on here in the trusted dealer section and with a few hours of browsing posts, you can find plenty more. Depending on your style and budget, there are dozens of great options. Congrats on your first PAMs -- they won't be your last!