Saying things like simple and possible don't make this any easier for me.
sucks then
also i ninja edited
Marbleman is capable of making a small script to make your targets flatten (setting their Y scale to something small)
You can find info on RTB pref implementation by checking some add-ons that use it.
And jump sound is a pretty simple playertype variable. Check the horse, it has a different jump sound.
and i can show you how to do the overalls if you want