Don't know if it helps much, but I have been a number of times surfing in Lombok, on the far southeast side there is a kitesurf school in a lagoon, beach is called Kaliantan. After one of my early surf sessions on the inside of Awang bay, I went back in the arvo for a bit of exploring on my scooter, the wind was a solid 15-20knts and I kept on thinking it would be a great spot for sailboarding as well as kitesurfing. The lagoon has an outer reef about 200mtrs offshore with beautiful clear water and a white sandy beach on the inside. Definitely potential there.
Kitesurf Lombok - Kite school Lombok | Kaliantan lagoon (kitelombok.com)