As you can see, this is a heavy work in progress.
List of current modifications include:
-Suspension work
-Interior swap (Akina ZR-350 interior)
-Aero work

And a small update: a personal rule book has been put in place for the personal setup series.
The rules are:

Pt1-1: engine swaps
-if the oil pan goes lower than the suspension, either use a different engine or redesign the hood
-if the new engine has a turbo system, the turbo, intercooler and filter (if included) can be moved accordingly

Pt1-2: available engine swaps
V6: V8, I6, I4
V8: V6
I4: I6, v6
I5: I4
I6: V6
V12: V16 or higher
R3: R4
Electric: N/A

Pt2: NOS
-nitrous has to be put in a reasonable place if chosen to be installed

Pt3: Suspension
-if a suspension swap is needed°, The new suspension should not touch the Wheel wells

°the suspension is too stiff and softer shocks increase roll to unacceptable levels

Pt4-1: Interior design
-if seats are to be changed, the new seats should not touch the roof
- If the interior is to be switched entirely, the new interior should fit without drastic modifications

Pt4-2: Available interior options
- Seats
- Steering wheel
- E-brake
- Shifter
- Dashboard

Pt5: Weight
-Final weight should not be more than 10% original weight