Procedure of [Sell & Purchased a preloved/preused car] in Malaysia

I had sold a car inback in Year 2014, and now (Year 2016), i totally forget what is the procedure.

I've got another car to sell... of cos no, this time, i want to buy a preused company car.
All the following hassle is provided you dont want a runner and sell to an individual instead of a dealer.

Seller:

1. When you get a buyer, and receive deposits from them. Deposits $$ depends on your agreement with buyer. 
2. call to puspakom, make a reservation for inspection http://www.puspakom.com.my/en/contact-us/inspection-centres.html. The inspection type is B5 - Tukar Milik (Charge: RM 30 by seller). If the buyer need to acquire loan from the bank, then you need to go through another test called Hire Purchase Inspection (Charge: RM 50 by buyer)
3. on the inspection day, remember to bring your car registration card, IC/official letter (wakil of company blah..blah .. blah...). You may need to remove the tinting beforehand.
4. remember to obtain the Sijil Pemeriksaan Tukar Milik from Puspakom.
5. Oh ya.. inform the buyer you pass the exam, i mean your car pass the inspection.
6. Terminate the road tax at JPJ with the buyer present.

2 copies of checklist form Checklist Form TM-1 (Pind.1/2012)

2 copies of JPJK3A that has been completed and signed by the registered owner and the new owner; JPJK3A

Original Vehicle Registration Card

Copy of registered owner's and new owner's identification documents using TM-AB (if not present during submission of application) * for individual and sole proprietor company category only; TM-AB

Original and copy of identification document of representative (if application is submitted by representative)

Letter/stub of ownership claim cancellation by the registered owner (other than e-Hakmilik); and

A valid Ownership Transfer Inspection Report by PUSPAKOM (www.puspakom.com.my) (other than motorcycles)

Original Road Tax

For partnership companies, agreement letter for the sale from all partners;

Copy of sole proprietorship/partnership company registration document;

Form D (Business Registration Certificate);

    
     7. There may be refund on Road Tax depends whether you want to claim it or not.
     8. Terminate the car insurance and claim for refund.

Buyer

1. When you go and test drive a car, always bring some cash/cheque.
2. Pay deposit (cash/cheque/Giro), depends on how much is the car. trust is on good faith.
3. Present to do Tukar Milik with seller at JPJ.
4. Get a New Road Tax.
5. Purchase a motor insurance from insurance company.

when is the handover ? It should be when you received full amount from bank/buyer.
and it depends if you trust the buyer.

For my case back in Year 2014, the buyer is rushing to collect the car, and i've no time to go JPJ yet, hence the buyer pay me 100% of the car and i handover the car to him before the TUKARMILIK processs at JPJ.