Good amount of solutions, its' good!
And the winners are...
medal (best score, using any tricks, including dark) goes to Votart Silak & V4nKw15h , both are 2910 (I merged their solutions to achive 2916)
medal (best pure light score) goes to V4nKw15h , very interesting second part of solution. Well done!
I also included my light solution, it have cheapest 1st part, Rob was very close to it.