Jazakallah for ur mesg
1)Prices on this thread and my facebook pages
https://www.facebook.com/AhmadYarsAutoSpa?ref=hl
https://www.facebook.com/detailingboyscom
are updated and valid, however last night also updated website 
2) On this thread only Meguiars and Maxshine for other brands refer my facebook pages and PW thread https://www.pakwheels.com/forums/body-lights-appearance-parts/226568-best-car-care-products-uk-usa
soon will also that PW thread with Chemical Guys Range which reaching by end DEC inshallah
3) Our meguiars Prices are least in whole of Pakistan.
4) Detailing spray is heaven gift for middle of week dust, I usually apply detailer spray wipe on my cars almost daily bases, first i remove soft dust layer with dedicated Car duster ( we are getting Chemical Guys car dusters by end of this month Inshallah ) than i apply detailer spray wipe.
detailer spray not only softly remove dust but also give a layer of protection and boost the wax coat underneath.
5) another option is waterless wash, its also very effective and fast ( we are getting Chemical Guys waterless wash by end of this month Inshallah )
6) using leopard courier as this is only one courier which accept liquids , rate rs160/kg for karachi
7) for enginebay detailing use degreaser , some brushes and some microfiber clothes
we are getting Chemical guys degreaser by end of this month Inshallah.
just care while doing this task to cover electrical panels by plastic bags and in last give good blower dry
pls refer this link for enginebay cleaning https://www.pakwheels.com/forums/members-member-rides/210937-bilori-10 
Feel free to ask me more
Ahmad Yar
0300-8419912 ( also avilable on whats app and viber )