Thanks. Both a little steep for me but good ideas.
Have you tired to go monovision? I use my left eye for distance so my mask left lens has -1.0 diopter and my right eye gets the -2.0 diopter for reading vision.
Found a good mask with wide range of diopters minus and plus. Spirit2 with single vision diopters in both eyes around $72
Here's a mask with bifocal lenses custom ground to your regular vision from Snorkel-Mart.com for $269.95