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Some prototype boards with 1/20" grid are available, e. g. from www.roth-elektronik.com respectively catalog distributors. A more versatile way is using SMT device adaptor boards on top of the prototype board, that allow also for smaller pin grid as 0.5 or 0.65 mm.
Use fine wire 28swg solder. If you short pins together dont worry you can use solder wick soaked in flux or a flux pen. Then reflow the solder with your iron and solder wick. Work up and down the pins and along the row. When doing this have the solder wick(braid) sandwitched between the component and your Iron. Make shure that your iron can produce enough heat especially on ground plains.
Alternately you could use a hot air gun to produce the heat but practise on something first as it is easy to fry up pcb's if your new to this method.