What sort of P/E Range is normal?

Hi all

I've done some basic calculations with lots of assumptions to try and come up with an EPS value and hence a possible share price.  The sector P/E ratio is 17.18 but I was wondering is this a reasonable figure to use?  I've included the calculations done, happy for it to be pointed out if I left out the glaring obvious.   

	Column 1	Column 2	Column 3	Column 4	Column 5	Column 6
0		P/E Ratio		17.18	Share Price
1
2		Earnings Per Share	$    0.0459		$ 0.79
3
4		Net Income/Outstanding Common Shares
5				Normal Shares	Issued	Total
6		Outstanding Common Shares		276,382,146	19,600,000	295,982,146
7		Net Income
8
9	1700	Gold Price per gram	$ 60.71
10	1000	Total Costs at 1000 per ounce	$ 35.71
11		Profit	$ 25.00
12	40000	Tones Per Annum
13	20	Head Grade
14		Singapore's Cut	24000
15		Our Interest	0.7
16		Total Grams out of the ground	800000
17		Less Singapore	776000
18		Profit	$ 19,400,000.00
19		Our Interest	$ 13,580,000.00