Let me start off by saying most UFS you see people using/selling were solf as a complete unit. It wasn't till the last UFS shippment that certain parts became available so before that it wasn't really possible to piece one together. That being said here is a list of what you would need to make a V2 and the extras you would need to make it function like a V1. Also note some of these parts are not currently available nor as far as I am aware will they be available for a while. (when I say that I mean Imeo has hinted he might make more UFS but that was a while ago and he always trys to make hist customer happy so if enough people ask him for the parts he will likely make them.) However at one point UFS was discontinued so it may be a while before we will see more parts. Anyways here is your list
1 UFS connector
UFS Connector - Complete
or can be made by combining
UFS Connector - No Insides and
UFS Connector Insides
2 UFS Collector Tank and Controll Ring
UFS Control Tank and Ring this is out of stock. It can also be made by combing the UFS collector tank and controll ring seperatly however I don't see the collector tank listed seperatly on COV ATM
3 UFS Bottom Cup/Tank Bottom
UFS Base / Bottom Cup v2
4 UFS Window (UFS V2 came with both clear and SS but only one or the other are needed V1 came only with clear)
GG Replacement/Extra Clear Juice Window for UFS v2 or
GG Replacement Stainless Juice Window for UFS v2 only
5 UFS Upper Body (Tank upper body)
UFS Upper Body v2
6 UFS Refilling Cap (out of stock)
UFS Refilling Cap
7 UFS Small Top Cap (out of stock)
UFS Small Top Cap
8 UFS O-Rings (not 100% sure this is needed as some parts come with 0-rings but it is good to have them in case)
GG O Ring Replacements for UFS
Optional
UFS V1 came with an atomizer extender and mouthpiece
GG UFS 510 Extension
and
Replacement UFS Plastic Mouthpiece
neither of these pieces are needed with UFS V2 because it allows you to use your own drip tips. However if you want to use a standard length (short) atomizer with UFS full mode the atty extender will be needed.
The mouthpiece is not needed at all but some of us prefer the GG mouthpiece (ss or derlin) over other drip tips. Note though that it will not work with all UFS setups.