get some aerosol auto stripper from say Pep Boys. Mask off the bedding, put on thick rubber gloves and a mask and give the clear a shot. This is going to go thru the clear and paint and into the primer if done right, the trick is not to leave it on too long. When it begins to blister, take a small putty knife and start quickly scraping. Scrape as much as you can and finnish up the rest with sand paper. Remember you have a window where it begins to work but you gotta scrape before it goes into the glass.
This stuff is generally pretty serious so don't breath it or get it on your bare skin.