May I suggest Maui Hill in south Kihei https://www.aquaaston.com/hotels/aston-maui-hill, literally steps from Wailea and sought after Keawakapu Beach. Where many 5 star hotels are located. 3 BR can accommodate up to 8, that requires 2 sleep in the livingroom sofa bed. Depending on the season, a 3 BR unit runs about $600/night. Good luck. Let us know what you end up with for future reference. Thank you.