Welcome.The fork seals aren't hard to do.Use the old one on top of the new one when fitting or get a piece of PVC plastic drain pipe of the correct diameter to press the new one in.It's easy to damage the new ones when fitting.
If you have fitted then before then no problem.Try and stick to a decent brand as there are some cheap crap ones out there.Honda or Pyramid is a good brand.
I have just done one for another owner so it's fresh in my mind.I also lube them to help them slide in with the 20w(Heavy) fork oil I use and recommend.
http://cgi.ebay.com/ebaymotors/Motul-Ex ... ccessoriesYou may be able to get it locally from a Motorcycle shop.