It would be fantastic to see Paul post again sometime and confirm his thoughts regarding the rules of launch sites and outer space act. Though given I am not exactly expecting to win the prize and doing this mostly for fun
Glad to see some quick replies - It doesn't look like much posting has been happening here in recent times. Are there still people researching this problem?
I'm hoping to start having the first engine prototype together this summer/autumn, main issue being the laws of physics doing their best to smite my designs the more I look into them each time I thought I'd be making it a year ago till I realised the thermal design I had at the time was not up to scratch