Trailer for Saturn 18' sib.

[Dom7337]

First of all sorry if there is a thread on this already. I did look around the forum and didn't find anything.
I have a 18 ft Saturn aluminum floor sib. It will have an Evinrude 30hp e-tec tiller. I need advise on a trailer for this sib. I looked into Harbor Freight tools and their largest boat trailer is max 14 ft boat. I have looked for used trailers and haven't found anything in my area. The sib and outboard will only weight under 400lbs with fuel. So I don't think I need a double axle or anything extremely heavy duty. Any advise will be appreciated. Also I am doing this on a budget and I don't want to spend thousands of dollars on a trailer. Thank you in advance.

[Nightfisher]

Hi, find a decent trailer capable of properly supporting 8 feet or so from it's ass, then extend the trailer tongue. Tongue extensions are all over the place "Trailer Parts" in the US. It's not a big deal to extend them, especially light weight centre-forward boats.
BTW: I'd recalculate the weight of SIB and Motor. I'd add 300 lbs without onboard battery(s) and/or fuel load. Good luck.