I would say on average 100 points is a standard race for a local level tourney, but nothing wrong with going to 75 if neccesary. Of course depending on your format of double elim or single elim. would come into play on the race. For a 100 point match you can figure 1 and 1/2 to 2 hours schedule time per match to be safe ( I use 2 hours ). Some sort of scoring device is definately needed, score beads or a counter. Keeping score on paper also works but not preffered. I don't see why you can't play on 8 footers if thats what you have available, why not. Depending on how many tables you will be using will determine the length of the tournament. A double elim with 32 players on 8-10 tables will need to be a 2 day event. Single elim with field of 32 can be done in 1 day on 8-10 tables but tight, start 2 hours earlier than usual.