@kestrelgrey - Thank you for offering to help! I tried to redownload G. Projector and it still isn't working. Also, and this was my fault, but the map I gave you was off by about 30 degrees, so I'm adding a link to the image file I would rather use. Sorry for the inconvenience! :P
Also, would you be able to take off the border surrounding the sinusoidal projection? If not it isn't a huge deal! Thanks again, I will definitely make sure to post pictures with my progress!
No problem, here are 2 versions both have the gray background removed, but when I removed the black lines around the gores, there was about 2px of empty space between them; so I've uploaded a copy with and a copy without those black outlines. The outlines are generated by G.Projector even when there's no graticule; I'm not sure how to turn it off, sorry!
Attachment 53064 Attachment 53065
Hope these help!