Herschel,
You have all the bits required for 1.25" and 2" EP's
The 8" I had didn't have a fan either and that didn't seem to cause any issues (smaller mirror/less mass?)
The focusser is the standard SkyWatcher one - It's OK and I don't think you'll NEED a crayford straight away - I'm still using the Standard focusser on my GSO 12" Dob, one day I might upgrade to a 10:1 but I soooooo many other bits to buy first
VAZ