My front bulkhead took over a week for the dealer to get the parts ordered. Another week for Heartland Parts Dep't to get the part from whoever at Heartland makes the bulkheads. Another week to get it shipped. Another week for the freight company. Another week for the dealer to cut it to size and install. Another week at the paint shop. All told, nearly 7 weeks.
Heartland directly controlled about 2 weeks of the 7. Maybe they could have moved a little faster, but even so, it still would have been 6 weeks. The dealer could have cut a week off at the front end if they had moved faster, bringing it to 5 weeks, but they were busy. Maybe they could have installed it the day after it arrived, bringing it to 4 weeks, but again, they were busy and I'm not their only customer. Trucking delivery time for a large crate probably isn't going to improve. Time at the paint shop probably isn't going to improve. So I think the best I could have expected would have been 4 weeks.
4 weeks would be better than 7 weeks, but I'm not really expecting to see better turnaround time.