I'd love a rerelease on these for sure but I read somewhere that Kyosho got rid of the molds for the vintage models. Tamiya still kept the original molds that is why they were able to release some of their old school stuff.
I did notice a bunch of Optima Mids and Javelins come up previously. It's good because it sort of drives the prices down. But, if you are only missing certain key pieces, some of those can be pricey on ebay. Some sellers charge $6.95 shipping for an itsy bitsy piece of plastic. Insane. Speaking of which, I just misplaced the tiny driver doll post that I got on ebay and I can't seem to find it...argh!