this sounds like an excellent idea, acid from the 90s is top stuff! mainly into the german/danish stuff as a medium base...
producers who have long left the scene i guess if they are untraceable, youd generally think theyd be happy with people to check out their choons otherwise it's lost in the sea of 'forgotten'
full choons would be best as listening to samples you can get only a rough idea and then you may purchase a record and hear somthing completely different...this works both ways
obviously samples are better than nothing at all