If you want to keep the price to no more than $200, and you don't want to wait around for a 1940's-1950's vintage Conn that will probably be more than $200 if the finish is in really good shape,
this might be something you'd like:
eBay: Conn Victor Trumpet 1970 w/case (item 110139815942 end time Jun-23-07 20:00:00 PDT)
I don't know if that is a 6B Victor* or a 22B Victor**, perhaps Christine of Conn Loyalist can tell us, although the photos might not show enough.
*
The Conn Loyalist
**
The Conn Loyalist
The 1970 year is just after Conn was bought by another company circa 1969 and the quality started to deteriorate a little.
But if you consult the realtive quality chart that Conn Loyalist has at
The Conn Loyalist
you will see that a Victor is far above a Director in terms of quality,
even if it is one of the late Victors when quality started to deteriorate a little versus one of the early Directors when quality was still excellent.
So a 1955 Director is an excellent quality student trumpet.
While a 1970 Victor is a decent quality professional trumpet.
That 1970 Victor on eBay would not need re-finishing, it comes with a case, the valves and slides would require no work, it is new enough to still have good compression, and with a price of $89 with 5 days left in bidding, I suspect it will sell for about $200.
- morris