DON"T Spend the Money!!!!!!!!!!!!!!!!!!!!
How much further do you need to be reduced. If you don't have 600/100 you probrably should not be in an airliner. Spend the money on a cfi and learn something, they can teach RJ systems at the airline. They can't and won't teach you to fly, you'll need to do that by becoming a cfi and teaching others your craft, you will truely understand and I will not need to hear another guy go COOOOLLLLLLLL when he enters a cloud for the first time at Mach.67.
Everyone who is or was not a cfi will scream about this not being the case, those of us that are and truely know the difference will agree.
Happy flying to you.
Seriously save you money, you'll need it to make it through the FO years, pretty soon when they start taking drivers license holders for FO's they will be charging you to work for them.