I've installed Lazarus today (that's a free Delphi compiler Lewin used for his MissionEditor) and after some hours KaM Remake can be compiled in it as well!
There are few flaws of course, but they are fixable, besides following components will need to be replaced - zlib compression, jpeg screenshots and mp3player. Using compiler directives thats not a problem to maintain both versions of Remake - full Delphi6 and WIP Lazarus
Anyhow Lazarus compiled version is playable. This means that anyone can join KaM Remake without need to obtain expensive and outdated Delphi6 now