One thing that you may have run into at Eberlins is a reluctance to cut the bench up due to it being a structural member that, if cut on would void your warranty on the hull or cause a safety hazard. If that's the case they should have told you that though. It may also be that they just didn't want the work. Eberlin makes their money from new boat sales, not fabrication and being closer to St Louis they sell a lot of higher end boats.
I bought my used Lowe from Eberlin but had all welding work done at Troutt. The drive was well worth the experience. Jeff at Troutt was great to work with as he is open to any ideas, is a top notch aluminum fabricator, and knows OB jets completely. He will tell you if something won't work, will look stupid, or cost more than the return. Within reason you're allowed in the shop and they're good folks. My experience with Eberlin was negative to the point that I refuse to go there unless I need a part that I just can't wait for. Eberlin is more than happy to take your money for a nice sale but after the sale they have trouble finding time for you. They will get your project done for you eventually but you won't have nearly as much fun during the project and don't expect to go back to the shop. I understand insurance regulations but that doesn't account for the coldness I experienced. For me Eberlin is a short drive and Troutt is far further but I'll go to Troutt every time plus Troutt REALLY knows jets. And, of course, this is just my personal experience and opinion...