The 8024B was among the first true DMM, manual ranging and by today's standards, has no CAT protection. Its from the early 1980s. eBay they sell in the $50-100 range. The 77, or 80 series are a better buy for a used old Fluke, as it sells for the same amount. Any design before 2000 doesn't have CAT protection built in.
The Extech 530 is ~ 5 years old, and a reputation for toughness, and a few Amazon users complain the accuracy is lower than its spec sheets, something I've never seen in any Fluke DMM. About $200, new.