Originally Posted by Dracula
As you say can't afford to be picky. The non oring or xring chains will wear much faster as nothing retains the grease in the rollers, also dust/mud can make it's way there acting as abrasive.(hence you will have to do chain maintenance more often) I know space is usually an issue, but I'd save the old sprocket just in case and perhaps buy few extra clip type master links to have. What about take the new parts with you, running the set you have till they are all used up and change then. And when installing the new parts, error on the side of looser chain adjustment rather than tighter. Just a few thoughts.
Best of luck!
And non-oring chains like a nice thick oil for lube instead of a dry spray lube. Something like gear oil will make the cheap chain happier at the expense of making a mess as it flings the lube all over.
Good luck my friend.