A couple pictures of the chassis batteries in an M2 Seneca.

Since I travel regularly with just my two grandsons I wanted a safe way they could both sit up front and see the passing scenery. By utilizing a Ford F-series seat installed using brackets I fabricated I now have a seat I can easily remove when it is just the wife and I and we don't need it.
I used SEM vinyl paint to change it from the original grey to a brown that is close to my front seat color.

The replacement of my original (framed) entry door window with the frameless style installed on newer Senecas.

To carry my 32 gallon sewer tote I designed and installed a system to carry the tote between the rear frame rails, yet be on a ramp I can lower to easily access the tote and replace it under the unit for travel. It lowers with a winch I operate with my cordless drill, the access is in my rearmost compartment.

The ramp itself is constructed of aluminum channel and aluminum angle. When raised there are hitch pin locks on each side to prevent inadvertent lowering should the winch have a problem.

Most newer Senecas (except FS) have the rear bed mounted as part of the slideout making the addition of traditional bed lift struts impossible. But I have engineered a way to make them functional using an adapter attached to the slideout trolley.

Some pictures of my project to create pass-thru storage in my 2014 Seneca. The space was originally closed off but only contains wires that pass front to rear. Fabricated and installed a shelf constructed with an aluminum frame covered by plywood. Will have two such shelves eventually in the two large compartment forward of the rear axle.

Details of my mount in cab as well as a picture of a Build5 Fabrications console with ScanGauge mount.

Pictures of my SeeLevel tank indicator and hot water recirculation installation in my 2014 Seneca.