New trailer?

I am in the process of shopping out new trailers, mine is at the end of its life (repair cost not worth it). Looking at a couple different options based on pricing. I really want to upgrade to a tandem, which throws the price up considerably.

I am not looking at a fancy trailer just something reliable that will last. I have a place that makes some quality aluminum trailers with adjustable bunks. I have no experiences with these and wanted to get thoughts???

The dealer told me they would fit my boat for a fee or I could do it myself, he said it was pretty easy if you are semi mechanical and that adjustments would be fairly minor. He also added the if I pre-fit by measuring bunks on my existing trailer it would help even more.

So are adjustable bunks something I should stay away from or good-to-go?

I am looking at the adjustable trailer in the $4100 range and a custom welded bunks, painted steel trailer in the $5500 range. And they just go up from there. I have yet to hear back from the Moomba dealer on a quote from Boatmate (factory trailer).

Any other options? (I have shopped around an not found any used ones).