8 Million? Mine was worth 800k, are you sure? Overupgraded or what?^^ You really dont need a so much better powerplant, i had one with D Heating Handling, its completly enough, there is only one expensive thing, the FSD for 5.1 Million, buying (in my opinion) a Type 7 before you have "about" 26 - 27 Million credits doesnt make so much sense, i learned that the hard way trough the not existent 10% discount in the Founders system.. it depends on the routes you have, you still need enough money to buy 232 of your tradegoods that are most expensive plus, i prefer max Jumprange before im going to upgrade.. for me everything under 15Ly is an absolute no go, preferable about 18 Ly (which also depends on the routes you have again...) it simply sucks and is time consuming (in the long term) to have to do 1 or even 2 Jumps more after a upgrade