Welcome to the crowd! If you do some checking on past threads you find your yardage rather debatable. Mine in idea conditions is 40 yards but seems to have drawn insults but then who cares? Sticks and stones! Awsucks offered a link to educate the masses about shooting ranges. The Excalibur site offers some good insite into ranges and I do not believe 45 yards is mentioned.
You'll only need a rope cocker which will basically cut the cocking effort in half as well as help align the string properly for accuracy.
The Phoenix will leave you wanting nothing assuming you are reasonable.
Ask Awsucks about the drawbacks of using more power. LOL, basically past the Vixen you burry your arrows deeper after zipping through a deer. You do not need more than a Vixen.
Now get ready for more good advice. Great thing about advice in general is that its free so there's no harm in tossing it! LOL!
Squirrel the Exocet is 200 and the Phoenix is 175.