Welcome JazzyFusion23: I don't know a thing about Alembic guitar electronics but to add a comment to Jazzyvee's very thorough recount of His experience may I offer this:
Both Larry Carlton and Robbin Ford use Hermida Zendrive
http://hermidaaudio.com/wp/ pedals into Fender Twins when their Dumble OD Specials are down. I think it's gotten to the point for Robbin that he's got the Zendrive on pretty much all the time. Larry uses a box stock 69 ES-335 and Robbin uses about a hundred different axes including some from Baker and a well beaten Telecaster.
Another point is that Alembic will give you whatever you want. If you buy one of their guitars off the shelf a trip to Santa Rosa with your rig would be in order. Or a long series of telephone conversations.
Further on point though, your LP would not be at it's best through a Marshall, for fusion tone. I do know of a First Class small shop in Chicago that can build you an OD amplifier made for your needs. Recently when Larry Carlton was in Chicago for a gig and his stack of Dumble amps were inop, he used this fellow's gear for the shows. PM me as I'm not sure how appropriate it is to post a commercial outfit. I'm not connected with this guy financially nor with Hermida either so anyway who knows what's right. I don't guess Alembic has a line of amps. Come to think of it if you buy an Alembic F2-B and push a HiWatt power amp section with it you could hardly go wrong for what you're after. (That was Gilmour's rig for years) For your use I would recommend the Zen with it though. I know a builder for that rig too. PM if you want to know.
So there you go. Three ways to get there.