You said,

"I'd like to be able to make my cels look like the 
original series as much as possible," 

My real impluse advice: Don`t do it. 

My politically correct advice:

Do it if is for your personal pleasure or under
commissioned work ONLY.

My point:

If you do decide to sell something in the end--
(of course you have not stated this)
it would be disappointing to see another "artist"
producing facsmile looking cels for sale put out
on auction. Too many fancel artists for profit in
my opinion already. Again, you did not say that,
but just that quote above is an unsettlingly
remark to me, so I decided to comment.

Anyway, that`s all.

E