Honda engine into dai G100 = bad news because you end up with a mix omellete of a car - next time when you need axle replacements - no parts exist as spares because whatever is going on is "hand made" - and hand made has one big problem - it can never be 100% similar every single time.
You will also end up with axle shaft length problems - too short a shaft causes severe problems too.
dai CB engines are still available in the scrap (as chinese clones from some forklifts) and are completely useable if you use the original manifolds on it.
Swaps are not always a good idea - 90% of them end up as a money pit and abandoned due to being a money pit.
Wiring up any D series engine is easy - you can do it in your sleep.