Maybe there would be people willing to help you out with this .... You dont have to do everything yourself, espescially with things like this its often possible to find community members that are both willing and capable of helping you out with this for free...

There are enough people making tutorials for other products..so why not for Varranger.. Would be a fun challenge to make a range of varranger tutorials explaining the features of the software into detail, and then uograding that series of videos with every few major changes you make to the software..