[QUOTE=banda;937533]Sorry to hear about your wife's injury.
I too would like to spend time at all of these parks and historic sites. And I don't think it will take as long as you think. By my count there are 102 parks and historic sites operated by TPWD All Parks — Texas Parks & Wildlife Department
and 20 historic sites operated by THC THC State Historic Sites | Texas Historical Commission
and keep in mind not all of them have camping.
We have camped at about 75 of them so far, and haven't found one yet that we didn't like, but some favorites include (in alphabetical order) Balmorhea, Brazos Bend, Caprock Canyons, Daingerfield, Davis Mountains, Enchanted Rock, Garner, Huntsville, Inks Lake, Lost Maples, Palo Duro Canyon, and Tyler.