If you use a hex editor to open the savegame file which is typically h3d something like savegame1.gam in the pieitvsavegame directory you should be able to do a quick text search for the h3 you entered when you started the game. All you have to do is count back 8 characters 16 of the hex numbers in the left pane typically which should reduce your offset by 8. Then enter the following sequence: F0 A2 9A 3B. This will give your character 999990000 credits to play with. You want to spend it fast because if the number gets over 999999999 it will go negative on you. In any case save the file after the edit you did make a backup copy in another directory just in case right? and load the savegame. You should be able to do some serious damage at this point as you will be able to build anything your little heart desires.