I'm in North Texas, but yes I did add HW test + preventative to my list of things to get at the vet. Luckily I have never had a problem with fleas or ticks in my area.Your supply list had the cost of a chip from a pet supply place as one of your options, so I inferred you were considering buying it from a supply store to DIY as some people do for vaccines. I'm glad that's not what you intended.
By the way, in South Texas, be sure you've got flea and heartworm prevention covered in that first vet appointment too. Different products start at different ages, but I probably wouldn't start it any later than 12-weeks in a heavy-HW area like this. You might also need a tick product, depending on whether they're bad locally.