Yes diesel is the solution. Off highway diesel is cheaper. It's literally the same stuff as #2 fuel oil. Only bleed the lines if your ran completely empty. Crack the bleeder next to the hose at the furnace blower and turn it on a few times. Most likely it'll time out and go into safety mode. Read your ignitor manual to see how to reset. Then do it again till fuel comes out of the bleeder. Put some tubing onto the bleeder so it comes out into a cup or something instead of spraying on your floor. In a pinch, ive called a friend or a friend of a friend who was in excavation or landscaping. Anyone of the guys you see around town who have what looks like a toolbox in the bed of their truck, but theres a fuel pump handle hanging on the side. This is how they go to job sites to fill their excavators, bobcats etc. I think most people are generally kind. I bet $40 would go a long way with one them helping you out with a few gallons.

Side note. This is also why I will never own a house without a second source of heat. Woodstove is best. Pellet stove with a battery backup is second. Fireplace last. Woodstock insert in a fireplace is pretty darn good too.