Hello, the best way to do it is to use a 110 chassis but man they are not cheap and not many around used. If your 109 frame is solid then you could graft the perches, suspension mounts over fairly easily. A LWB RRC classic wheelbase is also around 107 or so that might be worth considering. You could also strech a RRC or D1 frame to work. Anything is doable but the 110 chassis is probably the easiest. Shortening the tub and making a 100 inch is an option too. Truck cabs are the easiet for this.
As far as keeping the breakfast. It can be done. If you run the series trans and V8 adapter ring it will fit, but not a great option. Otherwise, plan on moving the motor mounts back 6 inches. Either way you will likely run into two problems, im sure there are others though. 1 the radiator has to be made to fit around the power steering box on a RRC/D1 frame and 2 the oil filter will need to be relocated due to the diff being to close to it. A third option is running a FC101 trans as the bellhousing is shorter. Let me know if you find one!
In my opinion, the easiest way to do this is to leave the motor/trans in place. I didnt take anything apart on my drivetrain except the tbox. My hybrid is an 88 so I took 10 inches out and then stuck it back together. I also wanted to have the breakfast in place but it was just so much easier to pop a 90 front end on it. Still gonna be pretty tight but I would just keep it as simple as possible as it takes so much time to do a hybrid.
Heres a recent photo of mine. HOURS and HOURS into it over the last 8 months and its still in the mock phase. Then I plan on taking it apart, welding/plating everything up before paint and reassembly.
PS: forget the EFI and get a Holley 470 truck avenger or a Edelbrock 500. Much easier to wire! Im using the original series harness!
Heres a link to a 109 hybrid my buddy in Fl built for a customer. Top notch an lots of photos.
Gallery :: Land Rover
