(US) Cobra Tire Redux

Thank you all for the fine past discussions archived here (2004, 2008,
2009) on this topic.

Without having read all of that three years ago, I put a set of good
touring passenger tires with adequate load rating on my Cobra and have
been careful to keep them maximally inflated. It's a 2002 with the 13
inch wheels, and I'm currently running P185/70 R13 like BB was
looking to replace in '08. I've had zero issues, and without knowing
better would have replaced them with another set of passenger tires in
the same size. It's comfortable with the Outback on smooth interstate
up to 72mph, with some sway if I bump it up to get around a truck on a
downhill.

It's been 3 years, so I was looking to replace them anyway. A spike
in blow-outs among people I know this year (and not just old tires)
has added a sense of urgency, and prompted my research here and on the
tire sites. And now, presto-chango, I have Decision Paralysis. If I
understand the situation correctly, my options a

1. Repeat 13 inch passenger tires. A look around the lot at M-ASA,
Uvalde, and NCI shows a lot of P-rated tires on Cobras, and it's all
I've ever used. But then, I didn't know any better...

2. ST tires. Would require changing to 175/80 R13, but I doubt I'd
notice the difference. 13 inch ST tires available locally sound
horrifically cheap, and no warranty. Spoke with TireRack, who have
only Goodyear Marathons--a couple of poor (blow-out) reviews online.
And 65mph speed limit unless you add 10psi--do our Cobra wheels have
an inflation limit? (DiscountTireDirect has Maxxis and Carlisle.)

3. Bigger wheels. Initially not a priority, but I had trouble finding
13 inch tires in Uvalde and closer to home. Would make LT tires (not
available in 13 inch) an option.

Trailer's in the driveway this week, and it's time for action. Anyone
else been down this road recently?

Thanks,
Erik