Ski, the whoopies are dead easy to make and well worth the expense. Any questions, fire away mate. If you want a set making just Pm me. The dyneema is £2/m or less, and you will need either 6 or 8 ft slings which will need between 10 and 11 metres of cord to make.
BTW, good news on your new hammock.
BTW, good news on your new hammock.