Garage sale find

So, i find this little Dodge Ram 50 2. 0 truck at a sale for 250 bucks. It ran fine when i test drove it, saw no appearance of leaks and the smoking the guy said it does was minimal so i bought it to use for delivering pizzas as i do. First night i take it out, i cant get away from my first stop, get a push finally and pop the clutch and i am okay and trade vehicles for the rest of the night. Change out the battery and try it another night and it does mostly fine except that it used a little under a half of a tank in only 63 miles! Very little power in this hilly town i live in so i was having to go as low as 1st and 2nd gear to climb. Got in it to come home and it barely got me here kind of like the idle had fallen down. It would restart and i would have to really play between the gas and clutch to keep it going at every stop. Changed plugs, wires, cap and rotor and it wont restart. Made sure i have the right order, still nothing. Checked the fire on the coil wire to find very little spark and changed out the coil, still nothing. It turns over good but doesnt start. A neighbor friend was trying to help me something about removing the first plug and checking compression? He said he could barely feel anything as i tried bumping the ignition. Would anyone explain that? What i do know, i am proud of being able to do but i dont claim to understand it all. I am attempting to switch out the fuel filter now if i could just get the dang clips off. We did spray starting fluid in the carb while trying to start as he said that would bypass filter and it wouldnt matter but still nothing. Can anyone help??? Thank you in advance. Mileage shows at 86 thou something but i am sure that has been rolled over at least once for an