welcome here! the truth is that chances are they WILL fight at first. you need to get him neutered (on friday, you said) and then wait for one whole month for his hormones to calm down. at that time, you will have a better idea of his "real" personality.
if you still want to get him a friend after one month, it is best to take him to a shelter or rabbit rescue and allow him to go bunny dating. this is where they introduce him to several female bunnies and he gets to pick the one he is most compatible with. in most cases, a male/female pair has the best chance of working out, obviously both need to be netuered/spayed. rescues are ideal for this b/c they do the altering before you adopt so you don't need to worry about getting it done yourself.
before you adopt, you need to be prepared with a second cage or pen as well as doubles of all the bunny supplies. they will not be able to be housed together right away. in fact it might take a month or more until they can be housed together. the bonding process consists of getting them together daily in neutral territory (space that Buggs has never been in before) and supervising their interactions.
like i said, this can take weeks or even up to a couple months before they can safely live together. from your description, pre-neuter he is very territorial. this is not unusual for a hormonal bunny. but if he remains this territorial afterwards, be prepared for a long bonding period.
here is my favorite bonding article, it's long, but it describes the whole process in great detail... http://www.rabbitnetwork.org/articl...bond.shtml
keep us posted on how his neuter goes!