1/10 Tiger I Early

[wtfworks]

Hello, this is my 1st thread. i have an question for DC motors
Currently im scratchbuild 1/10 TIger I. Im choosing this because this is the fit scale for me. not too big or small.
overall perhaps about 10kg. (Without accecorries and electronics). hull build from 3mm cardboard layered with resin, fiberglass & putty.
but still thinking about DC Motors. are Mabuchi 540 will fit for this scale? or this is my list to collect dc motors.

Option 1 :

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Built-in gearbox
Supply : 12~24 vdc
Arus : 3 Amp
Speed : 110  rpm
Torque : 30 Kg.cm
body : 10 cm x diameter 6 cm
shaft : 3 cm x diameter 0,5 cm
Weight : 0,7 Kg

Option 2 :

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Built-in gearbox
Supply : 12 vdc 3 Amp
Speed : 400  rpm
Torque : 6.5 Kg.cm
Ratio gear : 1:21
body : 5 cm x diameter 2 cm 
shaft : 1 cm x diameter 0,1 cm
Weight : 0,2 Kg

or any solution? thanks before.
(Admin please moved if im in wrong room)