tripple`s i am buying, worth it?

$550 bucks, worth it?

anyone know where these missing bits can be purchased, and a guess at what it would set me back?
cut and paste of discription i got.
Missing of this are 3 clamp on levers about 50mm or so long
These are attatched to levers on SIDE of carbs (1 missing only also clamp on) by 3 rods with plastic ball joint ends to connect them. That completes what you need, the only other parts you need are already the linkage setup on car from pedal to the shaft on pedestals

these are said to be in working order, and had $500 spent on them 5000 miles ago.

Personally i think $550 is too much, though i have seen them go for that.
Theres a nice set on ebay in new condition at $450 with 8 bids. If they were in perfect condition, and COMPLETE, they might be worth that, but do what i do, buy a set for $250-300, spend $50 on them like new needles and seats and an o ring here and there, and then theyre all good.

They look like a very early set too, only ones ive seen like that are on the old, old jags etc at hill climbs and sprints.

heres the link to the ebay ones:

http://cgi.ebay.com....1QQcmdZViewItem

or another set of strombergs i just found:

http://cgi.ebay.com....1QQcmdZViewItem

A1

ah ok then, the manifold wont fit my 12 port head anyways.

so do you think the best option is to buy a set off ebay that is complete, but in need of minor repair.
re sell the manifold,
purchase redline 12 port manifold
and get someone to put a kit through them?