As I have said repeatedly, I dunno. I can't math worth shit. But a suggestion might be in order.
Consult Kilgore's age adjusted charts.
Killustrated Weightlifting Freebies
Also, take a look at any given powerlifting federation's raw records charts or any given meet where someone your age with enough balls showed up to get on platform. This will give you a fair benchmark to shoot for or compare yourself to.
Full disclosure, I compete only in the USPA. Give them a look.
USPA Powerlifting - Competition Results
USPA Drug Tested - National Records
USPA Drug Tested - National Records
Also, thank you for asking this question. Looking this information up to provide you with revealed I scored a drug tested national record back in July.