Ruth,
Congratulations on your '61 Tradewind. I have a '60 Overlander (26 foot). I
can't help you on the shower rail, however the handle part of the latch that
holds the screen door closed (identical to the ones that hold the windows
closed) are still available. One place you can get them from is Inland RV
http://www.inlandrv.com/parts/ you are looking for their part number 91396.
They may not be the cheepest place around, but at least they have your part.
As far as the awning goes, I have and use exactly what you are trying to
describe. I went to a canvas/awning shop in my area. They do awnings for
hoomes and businesses. I described exactly what I wanted and they made it up
for me. The rail on the side of your trailer is "standard" sized so they can
use their normal "welt". They were even able to order heavy duty tent poles.
It does take two people to put it up, but it will withstand winds and rains
that destroy Zip-Dees. The trick is to have a spring at the end of each guy
line to absorb the shock from the wind. I was on my own to get the rope,
stakes and springs.
As far as the dinette goes-only you know if you are up to the job.
Personally I love the sofa set up. The table and chairs are removable and
allow us to bring them out to use for picnicing when tables are not
available. (We have done this at some VERY scenic places.) Yes the gaucho is
designed to only sleep 2 very cozy people, but as a kid I often used an air
matress on the floor - actually my brother and I fought over who got the
"cool" air mattress! Another option as we got older was a small tent. Way
Cool and we got to bring a friend along as well!
Scott