Based on the data provided, we can observe that the coin has had an average auction price of 95.24 euros in the past. Additionally, its current condition is estimated at 85 (VF+/XF-).

Considering that the coin will be auctioned in euros and that its condition is quite good, we could estimate a maximum purchase price around 100-110 euros. Given that the average auction price in the past has been 95.24 euros, and taking into account the upward trend in auction prices, a maximum purchase price of 100-110 euros could be reasonable.

It is important to consider that the final auction price will depend on several factors, such as demand at the time of the auction and the competition from other potential buyers interested in the coin.