A few items to be concerned about:
(1) The crankshaft pulley bolt is not installed at the factory using any Loctite. Do not use any type of threadlocking compound when reinstalling--not blue Loctite and definitely not red Loctite.
(2) The pulley bolt and washer (both used or new) should be carefully cleaned, rinsed with solvent, and blown dry. In your case, heat was applied, so you'll need a new bolt and washer--you want to clean the Cosmoline (or equivalent) off the new bolt and new washer.
(3) During installation of the pulley, washer, and bolt, new engine oil should be applied to specific surfaces of the washer and bolt. The other surfaces not lubricated need to remain dry. Look in a FSM to find out where these locations are.
(4) Never use an impact wrench to install the bolt. The bolt needs to be tightened with a socket to snug, then it needs to be torqued to a specific torque, and finally it needs to be tightened an additional amount of rotation (I think 60 degrees). You can use an angle gauge, but I just use yellow or white chalk marks.
(5) Never, ever heat a crank bolt. In your case, it was heated to cherry red hot, which greatly alters the designed metallurgy that Honda specified. The bolt is toast, the washer is toast, the damper is toast (rubber destroyed), and the main journal for the front main bearing is changed metallugically from being heated to cherry red hot--a front main bearing premature failure is in the cards, which will destroy the front main journal on the crank. The journal cannot be undersize ground because there will be spalling damage penetration deeper than the machinist can correct (because it will expose new metal that is not surface-hardened).
(6) I have had difficulties removing the bolt with 1/2" drive tools as well. I absolutely concur with one of the previous posts recommending 3/4" drive tools, as long as the socket fits inside the crank holding tool.
(7) I recommend getting new lower, rear, and front timing belt covers. They tend to warp and the long gaskets that fit in the grooves gets brittle, which opens up a spot for power steering fluid to enter. They are cheap and like someone else mentioned, you do NOT want to get any oil or power steering fluid on your new belt. Contamination will 90% of the time be power steering fluid since the pump is right above the rear timing cover.
(8) Check to make sure your year and model doesn't require the asymmetric shim for the idler pulley (and engine mount clearancing with a die grinder). I had to do this on our 2009 EX.
Great job and outstanding demonstration of perseverance!