Stock axles and gears should be ok for 33" tires. Your speedometer might be a bit off, but not much. Your performance will suffer a bit, but not much, especially if you have a manual. Most of the issues and problems start with tires over 33" and lifts over 3-4".
Yes, you generally pay more for lifts and add-ons, but way less than you might expect. People do not generally get their money back on stuff. So a $1,000 lift might increase selling price a couple hundred bucks.
It's not uncommon to see an ad that says "Over $20,000 invested. Will sell for $8,000 OBO."