Four cars for four people?

Is having four cars, for four people, too much?
These are the cars/vans:
-Ford Transit - My work van (I renovate properties, so need to carry tools etc.).
-Land Rover Defender - My wife's car for work (She has a horse riding business).
-Range Rover Evoque - Family car for driving everywhere.
-Aston Martin DB7 - I've always wanted a 'fun' car and it's been my dream to own an Aston since I was young. My friend was selling his for £23,000 so I thought it was a good opportunity.

The cars would be worth £70,000 altogether.
Is it over the top?

Ford F 450, 1997, gas gauge works, but switch won't go the second rear tank?

I replaced the switch same thing, only reads front tank and rear tank stays full.
I had the solenoid replaced on the frame 15 months ago, could that be bad again, that is over $400?

Added (1). I have two gas tanks, front and rear. Switch won't switch to rear tank?
Reads front tank only, even when switched to rear tank.
I replaced the switch, cost $62.

Added (2). The rear tank is full, Edith. It is full because I can't access the fuel.

Ford 9 inch rear axle 55'' overall length?

I'm building a project car and am looking for a model of the ford 9 inch rear axle that is 55 inches in total length (from backing plate to backing plate) that came stock in a car ford made. A link to an axle that fits these criteria would also be great;y appreciated.

Will 15 x8 Wheels with a 5x5.5 bolt pattern fit a Ford '83 F-100 ok?

Wheel / tire size changing is new to me and I can't seem to find appropriate help/answers elsewhere online at this point. My father passed away & left me his '83 Ford F-100 XLT pickup truck and although it's in very good condition… He somehow, for some weird reason, put 20" wheels & tires on the truck when it's suppose to have 15" wheels. I have done enough research to find that the original wheel size is suppose to be 15"x(?) + 5x5.5 bolt pattern. I have not been able to find offset & all that other mechanic techno-garble info. And the original tire size is suppose to be P195 /75r15sl. I have tried going to tire shops and every single one has said that yes those 20"s are not good for my truck (which I already knew that just by driving it) and that I should still up-size from the original since those p195's are like tiny car wheels. Every mechanic has recommended P235 /75r15 and that that size shouldn't affect the engine and transmission performance very much (if at all). Just to adjust for a slightly off speedometer of up 5 mph. 60 reading = 65 actual speed. Ok… I can live with all that if that is actually true. My problem is… Finding the proper wheel measurements because so many sites will say that the 15"x8" with 5x5.5 bolt pattern won't fit my truck of the wheel listed below but suggest other wheels of the same damn measurements. Will the wheels below fit & be safe to have on my truck with the P235 tires?

https://www.summitracing.com/parts/twg-71-5885/overview/

What kind of car fits these expectations?

I want a car that has every single one of these features. Are my expectations too high for the price?
Very comfortable
V6
Reliable
Luxurious
Spacious
2010 or later
Fancy looking
15000 dollars or less
Not a honda their all too loud
Not a ford their not reliable
Not a chrysler a family member was killed in one and i don't want to be reminded of it
75k miles or less
What kind of car am i looking for lol?