Malekula to Ambrym

Hello... So I was able to get flights to Malekula and Ambrym that worked within my schedule. I am flying in at 8:45AM into Lamap (Malekula) and need to leave Ambrym at 8:00AM flying out from Craig Cove two days later. So essentially I will have 2 full days (3 days and 2 nights).

I would like to spend a day on Lamap, and maybe spend the night, then take a boat to Craig Cove early the next morning and then spend the next day visiting the volcano on Ambrym and then fly out the third morning. I think the boat from Lamap to Craig Cove will be a bit pricey (more than $100).

Just wondering if anybody had any suggestions - accommodations, tours, guides, boats etc.

Thanks