? enlarging prints

I want to enlarge prints (2 -4x6 bw400cn? type) (2 -2.5x3.5 with elko border)
and (2 -3.5x2.25 with plain white border) to 8x10 for my aunt who is 90+ and has bad vision (finished quality will not be critical).

all have back print

oldest prints from '35

what is a good way to do this, besides scanning?
I do have good 35mm camera setup, copy stand, and enlarger, etc.

also, suggestions for toning and (ilford) paper are appreciated

film is delta 400 developed in D-76 (I have yet to find the grain)

attached are samples of each scanned with canoscan 3000f and saved for web low quality in photoshop7

Using Plus-X or equal, you should get good results. Better than scanning if you want prints.