Ok, lets break this down for a minute shall we? We have a Machariel, est market value of 390M. A seller list their Machariel for 700M at 48 Nodes equating a ticket value of ~ 14.6M. At this point you are the buyer and you see a Machariel listed and you buy a ticket. You have a 1 in 48 chance of getting that ship for 4% of the market value. At what point does it become relevent how much the total combined price of the item is? You still get that ship for 96% off market price.
Even if you had your scenario of 1.2 bil, which most likely would be at 512 nodes to keep price/ticket down, you would still end up paying out 2.3M for a ticket and assuming you win purchase it for less then 1% of market value. Again, why does it matter what the seller makes off the sale, you get a ship for a fraction of the cost.
Oh, but wait, “I want to buy multiple tickets, you know like 50% of them to have a much better chance at winning.” Ok, so at that point you are eating 600M for a 390M ship, but you are paying more for an increased chance to win, at the end of the day you simply need to use a calculator, there is one free in windows if you choose to buy large quantities of tickets you SHOULD be doing research anyway to see which is more cost effective because 99% of listings will be above market value be it 1% above or 1200% above. If you are only buying a single ticket or even just 5 you still end up paying less then buying off the market, but if you are looking at taking control of the item by doubling down and going half in, deal with the consequences of that action. We already have ISK spelled out as million, billion, and thousand…we do not need to confound that by making the system more idiot proof at a glance.