Manufacturer's have been building wind zone II (2) since 1976. Anything pre HUD is a wind zone I (1).
You should be able to call Fleetwood back and give them the VIN or serial number of the home and the HUD label number and they can find out if it is zone I or II. Zone III (3) is the best built home, as far as Wind is concerned. If you cannot get documentation from Fleetwood, which you should be able to, Check and see how many overheads their are on the home. An "overhead" is the strap that goes straight up from the anchor, under the siding of the home, over the roof and back down the opposite side and into the other anchor. Talk to your local mover. If he is reputable, he can and will show you the difference. If he is certified by your state, he would not, move something he could lose his license (ccertification) for.