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

1. Condition: The coin has a condition rating of 95 (EF+), indicating that it is in very good shape. This generally translates to a higher price compared to coins with lower conditions.

2. Auction History:
- The average hammer price for this coin in the past is approximately 1978.34 euros.
- In previous auctions, coins with a similar condition (95) have reached hammer prices that vary, but some recent examples show hammer prices of 3400 euros and 4400 euros.

3. Starting Price: The current starting price is 2000 euros, which is a good starting point, but given the history of hammer prices, the final price may be significantly higher.

4. Price Trends: Looking at the most recent auctions, there seems to be an upward trend in hammer prices for high-condition coins. This suggests that buyers are willing to pay more for coins in excellent condition.

Based on these factors, an estimated maximum purchase price could be between 3500 and 4500 euros, considering that the highest hammer price in the past for coins of similar condition has been 4400 euros. This also takes into account the possibility that current demand may be high, which could push the price toward the upper end of this range.