Looking for Advice - Underchassis - Rizal

Noob here that wants to get our car checked. May mga naririnig na po kasi akong langitngit at lagutok pag pinapaandar yung 2003 everest namin.

First is meron po ba kayong marecommend na underchassis specialist around Rizal?

2nd, what firsthand knowledge should I know before going to the mechanic? (Eg. Specific parts to look for and its price)

3rd, can I just ask them to quote and check first online if I'll source the parts myself and just avail their labor services? If yes, which shop online offers a complete list of parts for me to get in one order?

Thanks everyone!