Re: Hand Coloring
I know that i've seen kits of Marshall's Photo Oils at craft stores that now include a sample pack of 5 sheets of an inkjet paper lablelled for Marshall's. I would expect that this paper would be available as a regular item. Dick Blick Art Supplies has a healthy selection of inkjet papers and carries the Marshall's so I'd give them a shot first.
As to the compatibility of other manufacturers' papers...I'd check their websites: Ilford, Hammermill, etc.