Assembling first plane with a BME 90 engine. I apologize in advance for my questions that might seem basic. But here goes - any help is truly appreciated.

Lets assume a know very little about gas engines (or glow for that matter). But somethings I have thought of already.
a. have a PCM receiver
b. know I need special gas tank fittings - stopper, fuel lines
c. know with that engine (carb pumps fuel) I can locate the tank near or on the CG.
d. know I need a receiver battery and ignition battery
e. bme 90 has an electronic ignition
f. plane is a 90 size Edge

Now here come the questions:

1. Ignition battery - how many mah do I need (figure about 4 flights, 20 min each)? what voltage? Type of battery? Will lipo work - do I need a voltage regulator

2. Rx battery - Can I use a Lipo here? Have seen 7.4V but assume I need between 4.8 and 6.0. What do you need to use a lipo (voltage regulator)?

3. Fuel tank - what capacity would I want for 20 minute flights? Have heard the Hayes are the lightest, but have not seen Gas compatible stoppers for them? brand suggestion too.

4. What special wiring connection do I need for ignition - ignition switch on the fuse and by radio? Suggestions for switches to use...

5. Carb - That carb (Zama) has what looks like a butterfly with a control arm for it. And another smaller arm that looks like it might be the throttle. On a car engine, the butterfly is controlled by the throttle - this one is separate. What do I hook the throttle servo to?

6. Prop size - Anyone with that engine have suggestions for prop size.

7. 2 stroke oil - what ratio of fuel to oil? what type / brand of oil

That ought to get me started - many thanks for help.

- Rob