[TenTec] brick wall rfi dc filter?

[Denton]

Hi all....
I have a Paragon II and an Omni VI, both hooked up to separate TT power 
supplies. The rigs co exist nicely, but I recently did a bit of horse 
trading and have a number of sealed commercial deep cycle gell cell 
batteries I wish to hook up to a homebrew 35 amp power supply, heavly 
filtered, adjustable dc output and will feed the dc output of the power 
supply to the batteries with blocking diodes.

I have enough batteries(8 batteries at 37 amp hour each!), blocking diodes 
and heat sinks for the diodes that I am flexable on the dc feed to the 
respecitve rigs.

This will also feed dc to two vhf/uhf fm rigs.

I am thinking of 3 batteries plus 1 blocking diode per hf rig and two 
batteries plus a blocking diode for the two vhf/uhf rigs.

I am looking for rfi brick wall dc filters to hook up to the dc input of 
each TT rig.
Any recommendations for a 25 or so amp rfi filter, either commercial or 
homebrew?

I have a number of the recommenced dc circut breakers on hand for the TT hf 
rigs.

Any input? Thanks.