Here is an old case 5513. This one has gen dial, insert, crown, tube, bracelet usual case mods and was done in the less than $1000 area.
The minute you start moving into the Vietnam platform you are talking a lot more money. I made the choice to stick with the MBW old case platform and ETA movement (since there is no date on that watch) rather than being into the watch for $2,000 plus - especially in light of the decline in the prices of gens. The only issue with the MBW cases is that they will require case work. But half the fun of the MBW's is that you start with the base watch and add gen parts as you can afford it. 5513 gen dials can be had at excellent prices if you are patient, etc.