How hard is it to replace an oil pump in a 2003 spyder

The fuel filter is incorporated inside the fuel tank with the fuel pump assembly. Tank removal is required for replacement

It seems a bad idea , Just doing a good repair is like new :

replace head valves seals
replace head gasket , also check head plain
check cylinders for wear
repalce piston rings

You must remove the intake manifold to gain access to the rear plugs. Here is a picture of an 03 spyder that I did a tune-up on!!

Yes - that filter requires you to remove the transmission pan - the one with all the bolts holding it on - about 20 of them - it will seem like 100 - also replace the gasket too - filter and gasket and fluid - all at the same time frame

No it's not, you'll need to replace the valve cover gasket.

check oil pressure pump

use only OEM Toyota trans fluid. If there is one lesson I learned with my MR2, its that Toyotas own trans fluid is the best. Yes, its a few dollars more, use it anyway.

As for your top, there is a product called Amazing Roll off. Its for boat canvases and its simply the best thing i've ever used. try it, you wont be disappointed.

BAD RINGS OR VALVES. IT'S GETTING TOO MUCH OIL IN THE CYLINDERS.

I own a 2003 mitsubishi spyder eclipse GT and my alarm fob broke off its key chain so I havent been using it lately (waiting for replacement). Today I went to use my car (unlocked and opened the door with the key) and the alarm activated. The car still starts but I have to wait till the alarm gos through its cycle before I drive anywhere (embarassment of course). How do I disengauge the alarm system till I get the new fob?

Possible throttle control motor failure. Possible Idle Air Control Valve failure.
Is the "Check Engine" light on? Hard to determine without more info. Sorry.