Local feed/farimg supply store should have a styrophone incubator for about $50,or less(not much). It'll hold about 4-5 dozen large chicken eggs.
Follow instuctions for still air incubation. You would also have to hand-turn the eggs yourself. But that's not that hard to do.
Mark (use pencil only- ink or marker may seep though egg shell) an arrow on on side of an egg, roll egg in direction of arrow untill mark is on bottom, mark another arrow going in opposite direction. Make a half turn, go back the way you came. Never go all the way around, nor flip eggs end over end.
Turn eggs at least 2 times a day(every twelve hours), but it's better to turn then 3 or 5 times in 24hour period. The odd number of turns keep eggs from always setting on same side during the night . K Keep track of when, and how you turned(last) the eggs.
Tilt large end of egg up alittle, or (rather little end down) after 10th day. It is truly heart breaking to see a beautiful baby chick that died just because it's not able to get out of it's shell.
I use shelve lining ,the grippy- foamy kind, in the incubator to keep eggs in position I put them. Also,
Hand turning is ALOT easier when you set up the eggs in trimmed down box walls, no bottom, no top, just the walls to keep eggs from going where ever they want. Make sure that none of these 'walls' are taller then the eggs. Actually, it would probably be better it the walls were a little shorter than the eggs are wide.
Best of luck on the babies.........