Ok im not sure what exactly you ordered.... you make it sound like its a whole fork assembly... if that the case its super easy slip one out the new one in... but if you're using your fork tubes but bought new fork sliders then this is whats needed...
Do you have a factory service manual? it makes it easier... but the job is super easy. I dont know what year your bike is but if i was going to pull the lower legs (sliders) off id probably just go ahead and do the seals while i was at it... and new oil.
theres only 2 "special tools" needed to do a fork rebuild.
1st tool. theres a "damper rod holder" which is basically a T handle with a tappered rubber gromet at the end ( i made one out of a broom handle, shop rag, and electrical tap). BUT this tool isnt always needed..... only if you cant get the damper rod bolts to break loose without the damper rod spinning. So this is a MAYBE tool...
2nd tool would be a "slide hammer" used to hammer your fork seal back into your lower leg. $8.99 at ace hardware you get a PVC coupler and put your old fork seals in it and it works like a freakin charm.
if you want to know more hit me up ill gladly send pics etc of my set up.
2005 Victory Vegas
Ness Signature Series
Stage 1 kit