The ones that come with the kit are molded to bend at the right angles.
Craft beads are injection molded just like kits, they are going to have mold lines on them, normally there just not On the flat surface but there there. Unless you get Metal machined parts your gona have alot of tedious cleanup.
Also, if your in America, I REALLY suggest you shop here.
http://www.gundamstoreandmore.com/gundam.html
Top notch service, extremely fast shipping, free magnet in your purchases.
Part store, if they get returns that are missing parts they sell the parts as replacements If you loose pieces.
And Weekly Deals with prices up to 50%
EDIT
Ok, I figure since you don't know, ill tell you about that unit.
The GP-01fb is a Prototype gundam unit that was made in the year 0083. It is the sister unit to the GP-02b.
The GP-01 (and the fb space upgrade) is a close combat mobile suit. Designed for much the same purposes as the Original Gundam. The GP-02 on the other hand was an Anti-Nuke unit, more of a nuclear deterrent then a unit meant to stop nuclear attacks, being armed with a cannon that can fire a single nuclear warhead.
In the year 0083 the use of nuclear arms is illegal as is arming mobile suits with them. Anavel Gato, a Zeon Ace from the one year war, and his team consisting of two Dom-Tropen and a Xamel assault the federation's base in Australia. Gato breaks in and steals the 02 unit and its nuclear payload.
The federation ship, the Albion is tasked with reacquiring the unit and the 01 unit is assigned to it. They chase the 02 from earth to space.
Gato, with the help of Cima Garahau and her self titled Zeon Remnant fleet, launches an attack with the 02 at the Federation 'naval review' at the former Zeon colony of Solomon. The resulting nuclear attack destroys 1/3rd of the entire federation fleet.
From there the true purpose of 'operation stardust' is revealed as the Remnant Zeon fleets attempt to use thrusters to push a colony onto the moon, but change it's course and drop it onto the earth. The Federation is able to use a satellite based mirror system that uses the greek weapon idea and focuses the sun's rays onto a single area to cause damage, except on a planet size scale. The blast damages the colony as well as the 03 unit (stamen and orchis) and Gato's mobile armor. The blast does not destroy the colony and it falls, hitting the general area of the mid west US.
There are... 6 Major Mechs in the series.
01 unit
02 unit
03 unit with dendrobium
Gerbea Tetra
Neue Ziel
Val Varo