Well, you will not be able to program the RS08kA8. It requires Vpp (10-12V) on the reset pin and your demo board will no do that. You should also take a careful look at the RSKA8 resources - it does not have much.
If you must do an RSKA8, get the SOIC and solder it right to the ONE PAS board, SOIC is only half the pitch the pitch of DIP and it is pretty easy with out a microscope.
Also RSKA is a low cost but not a very low power chip.
Why do you need +5v chips ? If you can get over that, there all sorts of better chips. There are many way to interface with 3.3V.
Also, try and get off the dip package, as fewer and fewer options will be available thru hole.
I used to be that way, but now I just use the methods we have discussed. I have yet to blow a chip, but if I did I would use a hot gun to take it off, clean it up with solder wick and solder a new one on. (I have done this, but not on any of my prototypes - yet!)
It just limits your choices if you must have 5v and dip package. Also, if you need to have boards assembled, thru hole is more exspesive.