3rd Party Transfromers Questions

Hello,
I am new to the 3rd Party transformers game. I have been mostly buying G1 and the Classics\Universe\Generations stuff.
So I have some questions:
What are some of the best websites to buy 3rd Party Transformers? I have been looking at TFSource. I want to buy the first two Hercules figures but they are sold out there. What are other good options?
Also I was looking on Ebay, and there is someone selling them but they are from Hong Kong and they are pre sales. I have never purchased anything from ebay that was a pre sale transformer from a third party company. The guy has good feedback, but does that stuff ususally work out well?
Am I to late now to get the two hercules figures that are already out? I have noticed this third party stuff sells really fast.
I was looking at some of the Fansproject stuff. Specifically the Ultra Magnus City Commander stuff. I see a lot of stuff out there on ebay and other places saying KO. I know this means Knock Off, so would this item be another company that has already made a knock off off fansproject stuff? KO stuff ususally does not fit or work as well as non KO stuff correct?
I am new to the 3rd Party transformers game. I have been mostly buying G1 and the Classics\Universe\Generations stuff.
So I have some questions:
What are some of the best websites to buy 3rd Party Transformers? I have been looking at TFSource. I want to buy the first two Hercules figures but they are sold out there. What are other good options?
Also I was looking on Ebay, and there is someone selling them but they are from Hong Kong and they are pre sales. I have never purchased anything from ebay that was a pre sale transformer from a third party company. The guy has good feedback, but does that stuff ususally work out well?
Am I to late now to get the two hercules figures that are already out? I have noticed this third party stuff sells really fast.
I was looking at some of the Fansproject stuff. Specifically the Ultra Magnus City Commander stuff. I see a lot of stuff out there on ebay and other places saying KO. I know this means Knock Off, so would this item be another company that has already made a knock off off fansproject stuff? KO stuff ususally does not fit or work as well as non KO stuff correct?