like wat the reefers said here. 10k budget is quite tight. I think for u to estimate whether yr 10k can support yr needs.
1) tank size of 8ft length n 3ft wide. Better get a est. quote the tank thickness n if crystal glass. 4 by 3 ft by 3ft using 15mm thick glass. u be surprised from 12mm to 15mm jump in thickness, the price jump is quite significant.
2) Such huge tank need lots of LIVEROCKS. if u wan good LR, think coral farm selling $16 per kg. U will need a few hundred kg.
3) since LED is the IN thing now. MH is not So expensive compare to the past. a 8ft tank might need 3mh supplemented by T5.
4) Next is yr wavemaker. Probably u need at least 2x mp 60.
5) chiller compressor u need ask Derek for advice on 1.5 or 2 hp.
6) Skimmer also will take up a chunk of yr budget.
Best is u use the online tools and calculate the total water vol inclusive of tank n sump. from there u will know wat capacity Skimmer, wsvemaker n chiller compressor hp u need.
normally wat I read from reefing forums, for huge tank, u run calcium reactor is much much more cheaper than dosing.
U live in Jiak Hong Chu ah? 8x3x3 tank, yr house must be big n strong.