(ET) Question on converting a lawn tractor to electric

["Don Cohen" <bond007d netsync net>]

Hi all,
I am new to the list and have been observing for a few weeks.  I don't own
an ET (although I would like to).  My question is: Is there any reason I
can't convert a gas engine lawn tractor to an electric?  I have a good 
sized
Bolens 1886 Husky hydrostatic lawn tractor that currently has a Kohler
engine.  Why couldn't I take a tractor like that - remove the engine and
replace with an appropriate electric motor, batteries, electronics, etc. 
and
have it work just fine?  The accessories I have are a snow blower, a plow
blade and a 60" (I think) mower deck.  The deck, plow and blade are lifted
and positioned hydaulically.  Forward and reverse speeds are controlled
through the hydrostatic transmission with a foot pedal.  With an electric
motor of proper size and rpm, it seems like I would just need an on/off
switch and the motor would run full speed so full power would always be
available to the hydrostatic drive and hydraulics.  From my perspective, it
seems like it would be pretty easy to do.  What am I missing?  I'm sure 
this
has been thought of before and there are good reasons why someone would 
want
to go throught the trouble of securing and then refurbishing an ET vs. what
I suggested.

Hoping for some feedback!
Don cohen