Sold foreign property

We had a property in Ukraine that we bought in 2017 in Ukrainian Hryvnia, at that moment it was about 35K USD. The property was in a new building without an interior repair at all. Therefore we spent about 40K USD on making the interior repair, however unfortunately we don't have receipts at the moment since it was done in 2018. After we made the interior repair, we had lived in that property for a year, and then moved to Canada and then to the US, during that time we had leased the property (in total for about 1-1.5 years). We stopped leasing the property starting from February 2022. On September 12, 2023 we sold the property for 70K USD. How should we file this property sale in our 2023 tax return? Can we claim we bought it for 35K and made a repair for 40K (without receipts) to avoid a capital gain?