If your mom can handle the stimulating effects of the 1,3-DMAA and caffeine in Oxyelite Pro, I'd say the Oxyelite Pro and Alpha-T2 combo on Nutraplanet is pretty unbeatable, and easy on the wallet for what you get out of it.
Unbeatable, that is not including EC as an option.
Plus the Bacopa Monnieri in the OEP has great benefits for the brain including purportedly repairing damaged neurons with extended use, along with reducing anxiety on a supposedly Rx level (help for those sensitive to stims). Something someone at 45 might benefit greatly from.
Of course you shouldn't take my word for it, plug the ingredients into pubmed and see for yourself.
If your mom is down with the stims, I've heard that dexaprine is the way to go for energy, haven't used it myself though.
Best of luck.