Will it run

Because it has been setting that long I would suspect it has some corrosion on the valves and valve seats. That will easily cause low compression, and if you found that some valves had excess clearance when you adjusted them that would likely be the reason. The extra oil somewhat confirms that because you didn't get any real change in compression from adding it, and if it were the rings you should at least get a marked increase after it was added. A trick I have used with diesels is to spray just a small amount of gas into the intake and then see if it will fire. The gas burns a bit faster and hotter than diesel and can help to blow rust and crud off the seats. Another trick for dirty valve seats is to take a small hammer and tap the rockers or top of the valve stems a few times to see if you can get them to seat better. The numbers are not real good but it should at least fire and it is very likely that the compression would raise a lot if you could get it to run a bit. You may need to re-adjust the valves as soon as it does run though, if they were adjusted tighter they may not set down if the seats clean up.