Based on the provided data, we can observe that the coin in question has had different starting, estimated, and final prices in previous auctions. Additionally, it has been auctioned several times in the past, with an average final price of 156.81 euros.

The current condition of the coin is 70 (VF+), indicating that it is in an acceptable but not excellent condition.

Considering the coin's previous prices, auction history, and current condition, we could estimate a maximum purchase price around 250-300 euros. It is important to note that the final price in an auction may vary depending on the demand at that specific moment, so it is advisable to monitor the auction's progress to adjust the offer accordingly.