That is correct. That is all you will require 
Just stick a screw in the vac lines with a cable tie around it with the spare vac lines that you are left over with. There are cheaper egr deletes, by about 6/7 quid, I could dig the link out if you'd like 
That's alright mate, think Allard is well known company, so not bothered on a few quid

As said in my previous post,
2) Is it a job i could do on my own (which general garage tools)?
3) What is the main benefit of the delete?
Cheers once again