Based on the data provided, we can observe that the coin in question has performed well in previous auctions, with final prices that have significantly exceeded the starting and estimated prices. Additionally, the coin's condition is at a high level (85 - ebc-).

The average auction price for this coin has been 100.1 euros, while the average starting price has been 44.88 euros. Considering the current condition is 85 (ebc-) and taking into account previous auction prices, we can estimate a maximum purchase price for this coin in the upcoming auction.

Given that the starting price is 40 euros and the condition is high, we could consider a maximum estimated purchase price around 120-130 euros, considering previous auction prices and the interest this coin has generated in past auctions.

It is important to note that the final auction price may vary depending on the demand at that specific moment, but based on the historical data provided, a maximum purchase price around 120-130 euros could be a reasonable estimate.