Upgrades/Repairs during frame swap?

Hi all, New to the forum but reading as much as I can...started out doing online research for my up oming frame swap. My 2007 tacoma, DCLB is covered under the recall...new frame is on order. While it is being swapped out, I was thinking of doing upgrades...i have a limitaed budget, so I cant go crazy. This also my daily driver, kid mover, family adventure wagon. all of that being said, what items should I focus on having done? My intial thought was suspension, exhaust...and that is where i run out of ideas. Suspension is stock, thinking of going OME, but open to suggestions. Not necesaarily looking for a huge lift, ok with a small bump. Will evetually be putting new tires on, lame stock tires currently (or similarly lame). Also suopen suggestions to new tires and sizes... Again, this my daily driver, small kids need to be able to climb in. But hoping (dreaming) to build this into an overlander type rig... Will definitely see some backroads, packed full of gear, etc.

Thanks!