i have a maisto rock crawler. i accidently swapped the battery terminals n since then its dead. i dont know what happened. most probably the circuit is fried.
i am a newbie n after doing some reading i thot i could install esc, tx/rx sytem and a servo. i need to know what would be the min requirements.
also my parents are not keen to give me money to spend on "toys" being a grown up.
if anyone could tell me how to repair it or give me an estimate of how much minimum expenditure i need. it would be really helpful.
thank u

anyone please reply?

Hi,

I also have this crawler & let me tell you it is a very good crawler for being a toy.
Reverse voltage protection is very hard to find even for hobby grade electronics so you can expect that it's over.

I have not modified it due to lack of time but you can do it for a rewarding experience but it does require patience.
You will have to change all electronics.

Motor: You will need 2 180 size motors which are bigger than stock 130 size motors but fit nicely-
http://www.thinkrc.com/spare-part-ek1-0005a-000160-esky-180-motor-05m-pinion-p-304.html

Esc: You will need a brushed Esc & run both motors in parallel i.e. solder +ve terminal of both motors together & same for -ve terminals-
http://www.ebay.com/itm/New-RC-VSC-240A-Brushed-Speed-Control-ESC-For-1-10-Car-Truck-Rock-Crawler-/290692792214?pt=Radio_Control_Parts_Accessories&hash=item43aea3ff96#ht_4354wt_1139&afsrc=1

A cheap radio:
http://www.hobbyking.com/hobbyking/store/__10608__Hobby_King_GT_2_2_4Ghz_2Ch_Tx_Rx.html

A micro servo if required.

Similar items as above can make this one hell of a crawler. Around Rs.3000 may have to be splurged including shipping.
This hobby ain't cheap  

thank u so much. this was the most awiated reply. i really loved the truck.
will post as soon as i get the parts. 3k i can easily afford