Here is that thread mentioned before... within it, there are links to other threads.
http://www.pokerchipforum.com/threads/limit-cash-set-breakdown.12952/
Regarding increasing your limit to:
and your breakdown of
Now I would say you are primarily trying to use the $0.5, $2, and $20. You want to get all of the $0.5 and $2 on the table.
$100 Buyin (players 1-6)
32x $0.50
32x $2
2x $20
After the first 6 buy-ins, you have 8x $0.50 and 8x $2 left = $20. Buy player 7 and 8 in with that $20 and the rest in $20 chips. with 8 players, you will average 25x $0.50 and 25x $2 per player. That amounts to $12.50 and $50 respectively. Obviously if players buy in for less, give them fewer $20. You goal should be to get all of the $0.50 and $2 on the table quickly.
I think this is workable. It is similar to what I did for my game, but you are using way more $0.50 (for antes and small bets) than I used of $1. I think you will feel short on $0.50. I suggest you eliminate the $0.50 per player ante and change it to a $2 dealer ante. This will free up a lot of $0.50 chips to use for the $1 bets.