This sounds like a Herculean task. Let me ask you a few questions...
1) How many records do you have?
2) Why do you want to digitize lodge records? To some this may seem like the best way to "get into the 21st century", but unless your lodge is constantly accessing 50 year old documents, why not leave them in paper format? Sometimes the best way to get rid of the clutter is spend a Saturday with your Secretary and clean out old file cabinets.
3) If you must digitize everything, how will you store it? There really is no permanent solution to data storage, even stone tablets wear down. Even hard drives crash, or otherwise lose their data. USB drives have about a 10 year life span before files can be corrupted. So anything long term will needed to be backed up every few years. Also, what type of files will you use? .pdf? That file type might not be around for ever. These are just things to consider.
4) IF you still must, you might want to try and find a business that will do it for you. Hand-scanning documents is a very tedious process. I found a business years ago that offered to scan in my wife's old classroom worksheets (she's a teacher), and the price wasn't overly heart attack-inducing. I think it was PostNet, or some other post office place.