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

1. Current Condition: The coin has a condition rating of 75 (MBC), indicating that it is in relatively good shape. This suggests that its value should be above that of coins in worse conditions.

2. Auction History:
- The average hammer price for similar coins in the past is 107.55 euros.
- The coin has been auctioned 32 times, of which it has sold 29 times, indicating good demand.
- In previous auctions, hammer prices have varied, but there are examples of sales exceeding 200 euros, especially for coins in better condition.

3. Starting Price and Previous Prices:
- The current starting price is 40 euros, which is relatively low compared to the average hammer price.
- In previous auctions, the starting price has varied, but there are instances where the hammer price has been significantly higher than the starting price.

4. Recent Trends: In the most recent auctions, hammer prices have ranged from 80 to 130 euros for coins with similar conditions.

Based on these factors, an estimated maximum purchase price for this coin could be in the range of 120 to 150 euros. This is based on the auction price history and the current condition of the coin.