Generators for 5er

After 35 years in motorhomes with on board diesel generators, we are downsizing to a 32 foot fiver. Have a ton diesel to pull so that should not be an issue. Issue will be generating enough juice to power both airs and a couple of frig wine cooler.. want something quiet since we dry camp some.. is a generator mounted on a rear rack or one carried in pick up bed better? Is a single 7000 Honda better than 2 smaller generators hooked together to provide adequate power better? I would theft maybe issue on rear rack mounting. Ant advice from experience would be appreciated. I fear the move won't be pain free but to look on it as a challenge. Thanks