Try the National Wills Index at Origins.net. It's paid site but you search names for free to see if they are listed and you can subscribe for just 72 hours if you just need to look up a couple of names.
The Wills I found were on The National Archives site. I added the four to my 'shopping basket' and paid for them and was able to immediately download them. The loner ones were split into several .pdf files.