Based on the data provided, we can observe that the coin in question has performed well in previous auctions, with final prices greatly exceeding the starting prices. Additionally, the coin's condition is rated at 80 (VF+), which is positive.

The average auction price of the coin has been 65.86 euros, with an average starting price of 37.35 euros. However, in previous auctions, we have seen final prices reach up to 110 euros.

Given the good condition of the coin and considering the previous auction prices, as well as the fact that it has been auctioned 27 times in the past, we could estimate a maximum purchase price around 120-130 euros. This is assuming that the coin will be auctioned under similar conditions as before and that there is interest from collectors in acquiring it.