[FH16 tractor conversion]

Hi, first thanks for letting me join this forum, long time visitor and finally decide to sign up XD

I have some experience in scale model (1/35 military and Gundam) and diorama but never big scale RC truck, and always tempted to have my first truck

I love to have a 3rd gen FH16, however, it seem only rigid is available. I have done some googling and download some building instructions

I believe there are two way I could do it

1. FH16 Timber Truck, then sorce a shorter chassis rail, prop shaft, fifth wheel assembly and may be side shirt

2. Any tractor unit, then sorce a FH16 complete cab

Solution 1 seem more feasible, as I could not found any FH16 cab sold anywhere?

Or am I completely out of league as I never build any large scale RC

or any better solution?

Thanks