So you're looking for quick connect terminals (crimp type) that you can pull the plastic off, solder, then replace the plastic, plus heatshrink them? Interesting, but I guess from using these and crimping them I can perhaps understand why you are going to the trouble.
What brands have you tried and not liked? I'll take a look at the variety I have and see if any of them seem to allow this.
You couldn't just use a non-insulated terminal, solder it, then heatshrink it?