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

1. Condition: The coin to be auctioned has a condition rating of 95 (EBC+), which is quite high and suggests that the coin is in very good shape. This generally translates to a higher price compared to coins with lower conditions.

2. Previous auction prices:
- In the past, coins with a similar condition (95) have had hammer prices ranging from 9,000 to 10,000 euros.
- The last auction with a condition of 95 had a hammer price of 9,000 euros.

3. Starting price and average prices:
- The current starting price is 8,000 euros, which is reasonable given the historical hammer prices.
- The average hammer price in previous auctions is 9,500 euros, which also supports the idea that the hammer price could be in that range.

4. Auction trends:
- The coin has been auctioned 8 times, of which 6 have sold. This indicates a consistent interest in the coin, which may influence the hammer price.

Based on these factors, an estimated maximum purchase price could be in the range of 10,000 to 11,000 euros, considering that the condition is high and that the interest in the coin appears to be solid. Therefore, a reasonable maximum purchase price could be 10,500 euros.