What features/files does the minitool contain?, well...:
The Stock Recovery Flasher (obviously), batch file updater to update the file itself so you don't need to waste your time downloading the file again as an update, ADB files, Fastboot, wget for Windows to download the file which is required for the updater and of course the stock Android recovery.
If you want I can give you the Android 4.2.2 recovery.img image for the tool.
The updater was introduced from the Soft-Brick Recovery Project for the LG GT540 which I created myself.
Anyway post your results below so I know if it works or anything like that.
By the way in case you where wondering why all the files are in one place its because that I cannot find out a CMD command to move a file back one directory for the updater, if I do my method then it has to be in a certain directory so unfortunately that's how it is going to be until I find out the command.