What do you really want to end up with in the long run? Just a DD or a DD/trail rig/toy? If you are just looking for DD as a cheap ride, there are other choices than a Suzuki. My parents had an '88 Pontiac B'ville with over 150K miles that got mid 20's around town and 30+ on the freeway, and it was loaded.
And as most guys are comparing the Samurai to other DD's, I will tell you what caused my DD Samurai to start being more of a trail rig. An 06 Dodge Cummins Laramie 4x4 QC DRW. Has ALL the comforts any one would need.

And the track/kick can't compare to it.

Now to answer some of your question's about a Samurai as a DD, when my Samurai only had a SPOA, 32's, 4.12 TC gears, a weber and header/2" exhaust, I had no problems with it as a DD. Even tho I did those mod's, it was comparable to when it was stock but the ride was better with a little more power.
The thing does need better seats for a comfy ride as the back of the seat has a poor angle and you have to lean foward some. I did not have a problem with heat in the winter as some say, I would put the carpet back in and the hard top back on. As you are in Kali flat lands you should be ok with the cold, and not having to run too many hills.
Just remember, it is a Samurai with a four squrriel engine. What it lacks in some creature comforts and speed it makes up for in fun, and cheap fun at that.