I am not sure about the size of the werks springs, but with my Orion springs they are the short ones, I live in Vietnam so sometimes they do NOT have any in stock, so.... you can use the longer springs on the engine no problem, and for the pipe to pipe you can get the longer ones, cut the end off then re bend the spring and it works fine, doesn't look the best but WTF, who is really looking at your springs, as long as it is tight and keeps it connected it works fine. This way you can use the cheap $3 springs
Trust me it does work, just use needle nose pliers snip the end off and then use the first or second coil and bend it up then make the connection bend, put it on and check if it is loose, if it is then re bend as needed. I have a complete cut set on my engine and they have lasted well over 2 months and are still tight as hell