rerod, sorry, wasn't sure what you meant by narrow track. But yeah those are generally referred to as "inline" trailers vs deckover when the wheels are under them.
They are also widely available, round roof or not, although, your preference, flat multi piece roofs don't generally leak either. At least not the large number of personal and work trailers I've had over the years.
Was just providing options as the deal on those trailers and that dealer were a "can't be beat " type of deal when I searched extensively last year. Enough that I bought the trailer, had it deilvered (for a fee) and sold it when I was done with it for almost a grand more than I paid for it.
Regarding 15" tires, I'm curios to understand why they are so terrible. Same deal, 12-14-15-16" trailer tires. Have had lots of them and they are all good for their intended purpose. If you want to have 2x the capacity you need, it doesn't mean that the intended ones s uck.
