Hangar Flying

I am replacing the NG-30's in my Varieze in order to install the Wilhelmson nose lift without interference with F-22.
Sure I could just copy the layout from the existing NG-30, but would like to verify proper hole layout.
Also, I am ordering Featherlite gear to replace the main and nose units, laying up to Long EZ specs and installing new Cozzygirls long ez main gear attach plates.
Yes, I know it will be a somewhat major upgrade for the main attach plates.
All this time I thought I had the drawings, but all I have is the original Varieze manufacturing book without templates or specs!

Any suggestions? Are they really "necessary"? I have no drains, and the vents are all aluminum terminating inside the top of the header tank which is a little oversize. If I put in three gallons, the tank still has plenty of room for the  vent "T' to be in free air. The header tank cap is vented as would be expected. The system has worked well.
I am putting in the Piper fuel valve to replace the original weatherhead, and found NASCAR approved aeroquip fuel hose that is super lightweight with a Nomex/Kevlar braid that accepts standard AN fittings.  Tygothane (or whatever it was) and nylon fittings may be light, but I prefer a few more ounces of safety.
FYI, I do park me EZ in the hangar in a level flight attitude using a weight in the front seat and a brace under the prop flange to balance the aircraft. I previously did not have a gascolator, but am installing one now with the other upgrades.
My aircraft was built well and very light ... I can afford the few extra ounces (Lbs) I may gain through the refurb... Removing all the heavy instruments and radio and going lightweight digital. Also going dual electronic ignition and scrapping the mags too. The new Lithium-ion batteries are lighter than the old marginal battery. I hope to add almost nothing to the original empty weight while upgrading capability and safety.

Looking for original style nose gear retract assembly

OK guys, I want to run the 1100 lamb tires....which wheel and which  brand do you suggest. I realize that axles have to be changed out also to run the newer sytems.

What would be the caveat for running auto plugs on the original magnetos?
What is the latest opinion(s) concerning the P-mag, now E-mag?
I am also considering the dual plasma CDI...
...I am installing a starter, so I'll have a reasonable sized battery (still with the 8amp alt), and I really do not want to go the one elctronic, one magneto route.

O.K., here goes: I like the updraft cooling because of the direct blast on the exhaust valve area on the O-200. What about engineering the intake on the upper cowling and keep the updraft outflow? i.e. pressurize the cowl from the top and force the air through the bottom of the engine?

Anybody getting insurance on Variezes? I bought mine in WY and flew it to Florida where it is hangared. I was told to call Falcon, and like the others I contacted, once they find out it's a Varieze they seem to lose my number! Geez, I've got 14 hours dual instruction in the thing now ... from a very proficient CFI ... Me!

Just about to give up and call them frisbees ... Howinthe %^& are you supposed to search these things? Installed as per instructions, and now I can't get back to the explanation on how to use them.