Sounds like a typical cab to me! LOL (I live in Pa)
I look at it this way, unless you can find a perfect cab, (practically impossible) your better off just fixing your old one if it's in reasonable condition.
If you have to replace rockers, does it really matter if you have to go a bit further and replace the outer floor area? Most of these trucks are rotted there anyway. Mine was. All the panels are available and not hard to install.
Rockers are the first thing to go on these trucks. So are cab corners, floor supports and then floors. (unless you have a west coast truck)
I've done mine and things turned out great! (and I never did this type of work before)
I struggle along with my $199 dollar Craftsman wire feed welder, a $10 dollar grinder, and a $5.00 spot weld cutter. LOL
If you ever wanted to learn this type of work, this is the best place to start. You don't have to worry about warping as no one would see it anyway.
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63 Impala*66 Chevelle SS*69 Chevelle*69 C10 Stepside*71 Cheyenne 20*72 Chevelle
Parts for sale:
http://www.angelfire.com/trek/mr409/items4sale.html