Both Toyota Cami and Daihatsu Terios Kid are useless vehicles off-road while 80% of Sportage owners that I know complain of unique problems with their engines and off road performance.
If you're going for a small jeep go for a real offroader like a Jimny not for a crossover.
If going for a mid sized vehicles I would advise you to go for a 3 door Nissan Patrol , Pajero or LC Prado.
I would also recommend against getting an old jeep which is put together as an amalgamation of chasis, diffs, gearbox and engine of various cars unless you have a LOT of time and patience and the jeep is not your primary mode of transport. Also be prepared for at least 2 swops of every major component i.e. engine, gearbox, suspension etc.
If you want to build your own vehicle and if you are a lay person it's far better to purchase one which has easily available parts in poor condition such as one of those mentioned above and then replace parts rather than starting from scratch and trying to engineer the whole thing.