Based on the data provided, we can observe that the coin in question has had an average auction price of 95.54 euros in the past. Additionally, its condition has been described as '70 (MBC-)' on this occasion.

Considering that the coin's condition is '70 (MBC-)' and that the historical average auction price has been 95.54 euros, we could estimate a maximum purchase price around 100-110 euros. Given that the coin has been auctioned several times and has performed well in terms of auction price, a maximum purchase price of 110 euros could be reasonable.

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