As stated above if your on a budget just buy the springs, the car wont die or fall apart on you by not getting uprated shocks, my previous 147 was lowered on standard shocks by 35mm and i had that car 7 years only the rear passenger side leaked in that time and im not sure how old they were before i had it, as for a particular make of spring my last set on my current car were APEX there cheap but very crashy.
Atm i have second hand eibachs on from a 156 from a member on here i paid £50 for them and there a more refined crashy ride if that makes sense but defiantly an improvement over the apex. If £200 is your budget get some eibach pro springs you wont be dissapointed,, hope this helps with your decision.
147 JTDm 8v - RedDot remap - Stage 2 GT1756 Hybrid turbo - FMIC - JS & RAGAZZON Decat - - Eibachs - 4300k Hid's - 18" Multi's - Brembo 4 pot's .
189Bhp / 407Nm