Sadly he would be a candidate for a "Do I really need a Trailer" article similar to this one. I can tease Dre though because I gave him a fair warning before hand and healthy dose of 'Told you so' afterwords too
That said it a trailer is for you and your needs dictate such a use, this is one killer trailer to use.
I'm thinking $1500.00, Don't want it to look like a m416, just around that size. M416 trailers are getting pretty hard to find, and getting pretty costly. Would prefer new.
M416 trailers are not that hard to find.. but people want what they are worth + for them.. I know where there are some right now..
I think Kurt was trying to give you an alternative as I don't know that you are going to have one custom fabbed for what you want but heck.. don't know what you want other than general size
having a custom trailer built I would personally talk to the Trailer shop here in Tooele, the guys in there build some nice stuff, decent prices and are willing to take on almost any trailer project if you are willing to work with them ..
don't know their contact info but I am sure google could hook you up with that