Hiya. Welcome aboard

New guitar day. Yes!

G&L Indonesia make a nice guitar. Nothing shabby about the Tribute S-500 except the price.

In my memory of 51, with realistic expectations as it sounds you have, it shouldn't present any significant encumbrance to physical or mental dexterity for guitar, if realising those 20 year old's motor skills, acquisition rate and reflexes are long gone. Alternative positive attributes will have taken their place though as you doubtless recognise.

Cheers,

manXcat