And go for it I did.
I split the process of station/rail building into two phases, Phase I, CARTS station and base rail construction, as well as renovation of the existing tunnel to the surface of the nether from the TWHL Town portal, and Phase II, pretty that shit up. Phase I is about 90% done, just a few more rails to the track and it's ready to go. Phase II is about 20% done, some sections of the rail look nice, but most are just netherrack walls and ceilings. Then I just have to make the area around the surface portal at the iron grinder look nice, and it's all done.
Some pictures because why not.
The renovated tunnel to the surface, now 2 wide and all cobble so in the rare case you got Ghasts after you it doesn't blow up.
And the actual CARTS station, only one destination so far, capacity for 5.
Yay efficient nether transportation system.