Plenty of time - I went from virtually nothing to first marathon in less than a year. Good luck! let us know how the training goes.
Thank you. Pick the new running shoes up at the weekend, then start next week.Just keep going and you'll get there. Remember though: when the levee breaks, you have no place to go.
Did the Yorkshire Marathon twice, in 2018 and 2019. Last one nearly killed me off.
Hardest part now will be getting the mojo back to run regularly.