Today i visited a shop that had a fluval profile 100 (i liked very much

) so i now have a couple of questions

firstly i can't have the above tank due to not having enough room to open the side doors

unless i can convert the front to open, but i'm concerned about weakening the front of the cabinet and tank, does anyone think my plan is possible?
Now for the really stupid question

i like the idea about having the piping go through the bottom of the tank

but if i were to order a custom made tank and have the holes drilled for me, where would i buy the pipework from?
Would the fluval size tank be big enough to house a powder blue,picasso,emperor angel and a lemon peel?
many years ago i had the above fish minus the lemon peel in i think it was called a minireef set up

thanks for all your advice so far