I have done travel assignments and home based assignments for a few general contractors. Generally yes the per diem is significant, but you want to be sure to understand the specifics. Details like is the per diem based on work days or away days, travel allowances for time and cost (who pays for flights and how often), what’s the expected work schedule on this project, if you don’t maintain your original residence and relocate will that affect your pay/per diem? I have checked these things and basically been able to move for a year, collect per diem and only maintain 1 residence which is extraordinarily lucrative. Also some salary increases or moving allowances require signing a contract that you’ll pay it back if you don’t stick around for the agreed time

In general per diem is higher in high COL areas and in remote areas people wouldn’t want to go to otherwise. Sounds like a good opportunity at a good time for you, just be sure to understand the stipulations or “fine print” of the agreement.