Advice on older modulars

[Vince]

Hello all,
I'm scheduled to view a MH that is listed at a reasonable price for my area. It has a full walk-out basement, something I would love to have. However it was built in 1974.
I've heard rumors that, while the newer MH's are in many ways BETTER than stick-built, older ones may have been "junk". I understand that appliances and fixtures may have to be updated, but am I safe with an MH built in this time period, and what should I look for when in the home? The house has an oil furnace and aluminum siding.
Thanks for any input you can offer!
Vince