Newbie, help honing in Central Massachusetts

Hey everyone I'm new here on the forum but I'm looking for any advice on honing with Lapping film that i can get...

i have been shaving successfully with my Gold Dollar 800 and was able to refresh the edge quite well using some 3 micron and 1 micron Lapping film from 3M followed by CrOx ads stropping, i watched the YouTube videos by Slash McCoy and it worked awesome...

well i have found my grandfather's straight razor which he used prior to WWII as a barber...it has "H.M. Christensen stamped on the Tang and is set in Yellow scales, not sure of the material...

it appears to be a 5/8 stainless full hollow ground...i have tried a refresher honing on the 3 micron, 1 micron and CrOx paste but looking at the edge under a 20x illuminated Loupe i can clearly see small imperfections and even small chips I the blade....the bevel also is not the same width consistently along the length of the razor....

so I picked up a bunch of different types of lapping film, 30, 12, 5, 3, 1 and 0.3 micron and plan to follow Slash McCoy's YouTube videos all the way up the progression....i even bought the same bull-nose polished marble tile that he uses as a lapping plate...

this razor unfortunately has a pretty thick heel so while the blade will sit perfectly flat on the lapping plate, i can't really do circle honing because i only have about 1/8" of play before I'm touching the heel of the razor against the tile and the blade is no longer flat on the plate...

sorry for the extremely long post, but I really want to be able to bring this razor up to shave ready status on my own... and I honestly think I can do it using the lapping film....any help would be greatly appreciated!

thanks!