To estimate a maximum purchase price for the coin in question, we can consider several factors based on the provided data:

1. Current Condition: The coin has a condition rating of 75 (MBC), indicating that it is in relatively good shape. This generally translates to a higher price compared to coins with lower conditions.

2. Starting Price and Average Hammer Price: The starting price is 60 euros, and the average hammer price in previous auctions is 113.46 euros. This suggests that, on average, similar coins have reached significantly higher prices than their starting price.

3. Sales History: The coin has been auctioned 118 times, of which it has sold 103 times. This indicates good demand and a history of successful sales, which can influence the price.

4. Previous Prices: By looking at previous hammer prices for coins with similar conditions (75-80), we can see that they have reached hammer prices ranging from 85 to 150 euros. For example, in previous auctions, coins with a condition of 80 sold for 150 euros and others for 110 euros.

5. Recent Trends: In the most recent auctions, the hammer price has been in the range of 90 to 140 euros for coins of similar condition.

Based on these factors, an estimated maximum purchase price for this coin could be in the range of 130 to 150 euros. This is based on the historical hammer prices for coins of similar condition and the price trend in recent auctions.