I'd look at the TFX 7020. The Texalium rods have had a few reports of the finish coming off at the texalium if dropped or hit, heard one damged by the rod holder.
The 30 lb version you were looking at makes a better Tog rod.

what is the weight of TFX 7020?

Don't know where your getting your finished rod weights from, but looking at the blank weights it looks like Lamiglas and everyone else making saltwater blanks/rods that are rated for your weights all start with blank weights alone in the 4 oz and heavier range.
A heavy power bass rod may be your best bet for a light rod, but durability over time of the components won't be what a saltwater rod will take. That said if you keep it clean and free of saltwater after each outing and don't treat it like many people do the lighter components/construction on a bass rod will work very well, as fishing rod components are considerably over engineered for the loads they are subjected to while fishing. The abuse and banging about from angler/transportation is far worse than anything that fishing can do.
I've got a few saltwater/oversize sturgeon rods I built over 20 years ago that have salmon/steelhead/bass frame sized guides on them with no failures of any kind. If they can handle 8 ft+ long fish/ 100 lb+ in heavy current you'll have no problems.