Based on the provided data, we can observe that the coin in question has a grade of 80 (MBC+), indicating that it is in fairly good condition. Additionally, it has had previous auction starting and estimated prices ranging between 75 and 125 euros, reaching as high as 200 euros on one occasion.

The average auction closing price in previous auctions has been 115.2 euros, giving us a reference of how much buyers have been willing to pay for this coin in the past.

Taking into consideration these data points, as well as the fact that the coin will soon be auctioned with a starting price of 110 euros, and considering its good condition, we could estimate a maximum purchase price around 150-160 euros. This estimation is based on previous price trends and the quality of the coin's preservation.