First and foremost let me start by saying, "Damn you guys are awesome!" I've been snooping around the forum for over a week now and told hubby I'm just going to get on and ask and you have far out done yourselves! Thank you!
I'm going to give the "list" to hubby, yes, he does have experience with small engines, big ones too
I wouldn't have let him get a boat if he didn't
I know the carburetor was rebuilt last year (according to the man we bought it from), new fuel lines, new spark plugs, new water pump impeller, the lower unit is sound he's done that since we've took ownership, the rest he will have to check and/or recheck but it's a good direction.
The B&S does not have a water pump that he's aware of. He thinks it may need a new fuel filter it's not getting any gas and we know the fuel line from tank to engine is good so it's falling on it's face from there. He's more enthusiastic about tackling the 15HP than the 5HP right now. So we can come back to the B&S at a later date. However, good to know it's just a mower on a stick (lol!!) He shouldn't have a problem then. I think he just wanted to a bigger engine to be frank. I would still like to get it running, we can always sell it.
In the interim, thank you everyone! We'll let you know how it all pans out.