Import and export whole ~140MB mempool on bitcoin-qt client

I want to switch over wallets to do some calculations based on my wallet inputs and mempoolminfee. It requires to restart bitcoin client to use different wallet file but my mempool would empty and mempoolminfee would become zero. I can receive ~6MB metadata about mempool by pushing {"jsonrpc": "1.0", "method": "getrawmempool", "params": [true] } via rpc. Retrieving actual data in one package is still mystery for me. One request for each unconfirmed transaction looks overkill for my node. via /r/Bitcoin http://bit.ly/28MClfe