well if ur planning to diy then go to meguiars kamias bka mas mura dun since sila ang distributor. regarding mabigat sa bulsa ang detailing well if u bring it to a reputable detailer and if they do a good job i guess ull be satisfied then di m na isipin na mabigat sa bulsa kasi mas mabigat sa bulsa ang magparepaint than to maintain ur existing paint finish.
Saw one Meguiars product (Gold Class) both on paste and liquid form in True Value Shangrila, selling * P789.00. Original price sa Hans Tool is P1300. Hope this help!!