Understand up front that I have NO affiliation with Oliver trailers. I have, however, studied their trailer at great length and being an engineer at heart, I have developed a great amount of respect for the quality of their trailer and admiration for the philosophy that this company exhibits.
I did a quick search on google and I found this:
In looking at the specs on their 17 foot trailer I saw several notable differences. This is not to imply that their trailer is inferior, only different. It would be up to each individual to see if the differences suit their needs and tastes.
Their trailer has a two piece exterior fiberglass shell with an interior of vinyl wall paneling and fabric headliner. Oliver has a two piece custom molded interior shell as well as the fiberglass exterior shell.
Their trailer does not offer shocks. Up to four are available on the Oliver.
Their trailer has a 2-way refrigerator. The Oliver has a 3-way.
Among others, the following are options on the Bigfoot (All are standard on the Oliver Legacy Elite)
11,000 BTU AC (13,500 BTU on Oliver)
"Battery Ready" (to me this implies that no batteries are included)
Fantastic Fan is Not Available
External wash station
LCD TV
Stabilizer jacks (these are most likely NOT power)
AM/FM CD/DVD (two speakers only)
At 8 feet wide, the Bigfoot would be wider than almost anything you'd be pulling it with.
Further with a Base price of $28,820, getting this trailer up to the standards of the Oliver would be a rather pricey journey.
This information is based on a quick check of the information found on the above link and please, anyone that notices any discrepancies feel free to correct me.
Hope this helps...