The fixed income info source that I have the most familiarity with would be Bloomberg, but that may be more than what you are looking for, considering it runs a few hundred or more a month. You might consider looking at their website, if you have not already. It has been awhile since I looked, but they might have some of what you are looking for. If I come up with other sources, I will post them here. Sorry, I couldn't be of more help.
Gordo