Install new tires/grease bearings by self?

Luminajd wrote:
Our camper is a 2012, we bought in 2013, and have never greased bearings (whoops!!). We tow about 500 miles each summer.
Questions:
From reading on here, it sounds like it is time for new tires (judging by how long tires typically last)
We would like to do this as cheaply yet safely as possible. It is possible to buy new tires online and install in the driveway, but do they need to be balanced or anything like that?
How about bearings, husband says he doesn't want to, but this forum makes it sound pretty easy...
Is it reasonable to install new tires and grease bearings all from home? I haven't even called a tire place or dealer because I am scared to hear how much they would charge for tire installation and packing bearings.
Thoughts?
Thanks!

I buy tires online and have a local garage mount them. I balance them myself because the drums aren't balanced so I do them as an assembly.

I would never put a trailer in service till after servicing the hubs. I do all my own work, it's the only way that the job will be done right. You can watch YouTube videos to learn how, but some of those folks are slobs.