First of all, thank you again for the effort you have put into your suggestion! One thing that would be incredibly useful for us as a development team would be an ordered list of what you would want priority wise (including paid an unpaid, just make it clear which are paid and which are not) possibly on a google sheet. The effort in this suggestion anyway is very refreshing just saying that this might help us identify ones which people really want (and are free) and so that we don't go and buy one which no one would use over one people want.
Obviously I have to add the usual, at the end of the day the decision on which assets are purchased and put on the server is down to the development team, leads and management but this helps us get an idea from the community.