Most folks will probably point you
here for the bows, although you can try and patiently wait for them to come up for sale in the classifieds. You better be ready to pounce when they do though! And
Julie makes a killer reproduction top that's tailored to those RealSteel bow dimensions. Call RealSteel to confirm but I believe their B Pillar inserts are made to fit hardtop doors. You can search around the forum for "soft top B pillar" and find photos and examples of the differences in the factory soft top doors. I have reproduction bows made in Pakistan which aren't uncommon either, but they're not a precision fit. $1k for a pair of soft top doors sounds high to me unless they were fully restored and completely rust free.
In San Antonio I suspect you'll find yourself running around topless quite a bit, so that's something to consider. I know I do most of the summer. The neighbors just stop and stare...