If you are always or almost always recording in good venues you can use omnidirectional (omni's) mics. If you are not you will be better off with cardioid (card's) mics. I do not believe that the R09HR supplies phantom power (48 volts) for mics so you will be well off with electret mics and possibly a battery box. This is tiny gear. In a pinch you can carry the whole kit in a jacket. A gear bag is a good idea. Yes, you will need some sort of mic stand, too.
There are a number of mic sources. Sound Professionals and Microphone Madness have mics for classical works. Church Audio makes mics which are well respected here, but I think that even by the maker's admission they are more for pop/rock than classical. Send Chris a note to be sure.
Over half of the recording will be the room, then mic placement in the room and then the mic itself. This applies to acoustic. Rock is simpler. Pretty much just point the mics at the stacks and start recording.
The Bartlett book,
Recording on Location in invaluable.
You should be able to get the hang of it pretty quick. With the cards you will most likely be using an ORTF array a lot: 17cm spacing, 110 degree included angle. It is a safe go-to array. There are others. Check
Stereo Zoom which is a sticky in the microphones section here. And have fun. And, yes, good recording can make you some money. Just do not forget that your customers are poor students. ;o)
PS - Audacity is the editor of choice around here. It is free and runs on PC, Mac and Linux. It is not very hard to learn. You would do well to D/L a copy and play with it with some WAV files you have to get the hang of it.