Welcome!
I joined not too long ago for all the same reasons except my 2.5+ acres has been owned by me for 23 years. I started mowing the weeds with a JD STX 38 around the new house, then moved up to JD 318, then a JD 445, and JD 1026R SCUT this year as my landscaping expanded.
But - I also mow about half, and see you don't. I think you will still need at least a subcompact to do the heavier chores you listed, unless you want to do those with rentals. Keep in mind though, if you go the rental route that includes all the hassles of arranging for equipment availability, inconvenience of pickup & return, esp. when you're dead-***** tired after the job is thru (been there, done that the first 10 years!).
You have a great looking place, as the other members state - don't stress over it too much - enjoy it, life is short enough as it is!
Best Regards,
DeereMann