Used to work for a company that installed package boilers, sometimes in impossibly tight spaces. What would work for you is to chain a snatch block at the bottom of a post at the back of the space you want the truck in. Run a cable from the back of the truck, around the snatch block (pulley or shieve in some areas) and then back out of the building to as big a tractor or truck as it takes to move it. If you don't have a solid enough anchor in the building park something really heavy outside the back wall and make a hole just big enough to run a chain through to hold the snatch block. The higher you can mount the block the more the cable will pull up on the rear of the frame. I don't know how much your old truck weighs but we skidded boilers that weighed 40,000 pounds with this method. Good luck
