I have a 2000 Honda accord saloon 2.0 and I’m struggling to find the right clutch. I put my reg in online and it comes up with 3 or 4 different sizes I don’t really want to take it out first because I need to remove and replace in one day can any one help please thanks Ryan 

Hmm....that's a tough call as to which one you'll need.
I guess the only other way is to order all the sizes and return the ones you don't need.
A local motor factors (Euros, GSF, etc) will happily do this for you if you explain the situation